sonar fixes

close resources in tests
fix gradle warnings

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1892683 13f79535-47bb-0310-9956-ffa450edef68

build.gradle

@@ -209,7 +209,7 @@ subprojects {
         // make XML test-results available for Jenkins CI
         useJUnitPlatform()
         reports {
-            junitXml.enabled = true
+            junitXml.required = true
         }
 
         // Exclude some tests that are not actually tests or do not run cleanly on purpose
@@ -238,7 +238,7 @@ subprojects {
             "-Dversion.id=${project.version}",
             '-ea',
             '-Djunit.jupiter.execution.parallel.config.strategy=fixed',
-            '-Djunit.jupiter.execution.parallel.config.fixed.parallelism=3'
+            '-Djunit.jupiter.execution.parallel.config.fixed.parallelism=2'
             // -Xjit:verbose={compileStart|compileEnd},vlog=build/jit.log${no.jit.sherlock}   ... if ${isIBMVM}
         ]
 
@@ -278,7 +278,7 @@ subprojects {
 
     jacocoTestReport {
         reports {
-            xml.enabled true
+            xml.required = true
         }
     }
 
@@ -396,6 +396,7 @@ subprojects {
 
     spotbugs {
         ignoreFailures = true
+        showStackTraces = false
     }
 }
 
@@ -536,7 +537,7 @@ task replaceVersion() {
 
 task zipJavadocs(type: Zip, dependsOn: allJavaDoc) {
     from('build/docs/javadoc/')
-    destinationDir = file('build/dist')
+    destinationDirectory = file('build/dist')
     archiveBaseName = 'poi'
     archiveVersion = subprojects[0].version
     archiveAppendix = 'javadoc'

poi-examples/build.gradle

@@ -65,6 +65,8 @@ task cacheJava9(type: Copy) {
 }
 
 jar {
+    dependsOn cacheJava9
+
     destinationDirectory = file("../build/dist/maven/${project.archivesBaseName}")
 
     if (JavaVersion.current() == JavaVersion.VERSION_1_8) {

poi-excelant/build.gradle

@@ -105,6 +105,8 @@ task cacheTest9(type: Copy) {
 }
 
 jar {
+    dependsOn cacheJava9
+
     destinationDirectory = file("../build/dist/maven/${project.archivesBaseName}")
 
     if (JavaVersion.current() == JavaVersion.VERSION_1_8) {
@@ -120,7 +122,7 @@ jar {
 
 // Create a separate jar for test-code to depend on it in other projects
 // See http://stackoverflow.com/questions/5144325/gradle-test-dependency
-task testJar(type: Jar, dependsOn: testClasses) {
+task testJar(type: Jar, dependsOn: [ testClasses, cacheTest9 ] ) {
     destinationDirectory = file("../build/dist/maven/${project.archivesBaseName}-tests")
 
     classifier 'tests'

poi-integration/build.gradle

@@ -96,7 +96,7 @@ jar {
 
 // Create a separate jar for test-code to depend on it in other projects
 // See http://stackoverflow.com/questions/5144325/gradle-test-dependency
-task testJar(type: Jar, dependsOn: testClasses) {
+task testJar(type: Jar, dependsOn: [ testClasses, cacheTest9 ] ) {
     destinationDirectory = file("../build/dist/maven/${project.archivesBaseName}-tests")
 
     classifier 'tests'

poi-integration/src/test/java/org/apache/poi/stress/BaseIntegrationTest.java

@@ -37,6 +37,7 @@ import org.apache.poi.poifs.filesystem.OfficeXmlFileException;
  * types of files/exceptions, e.g. old file formats.
  *
  */
+@SuppressWarnings({"java:S2187", "unused"})
 public class BaseIntegrationTest {
     private final File rootDir;
     private final String file;

poi-integration/src/test/java/org/apache/poi/stress/XSSFFileHandler.java

@@ -17,6 +17,8 @@
 package org.apache.poi.stress;
 
 import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
+import static org.apache.poi.xssf.XSSFTestDataSamples.getSampleFile;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
@@ -219,12 +221,14 @@ class XSSFFileHandler extends SpreadsheetHandler {
     }
 
     @Test
-    void testExtracting() throws Exception {
-        handleExtracting(new File("test-data/spreadsheet/ref-56737.xlsx"));
+    void testExtracting() {
+        File testFile = getSampleFile("ref-56737.xlsx");
+        assertDoesNotThrow(() -> handleExtracting(testFile));
     }
 
     @Test
-    void testAdditional() throws Exception {
-        handleAdditional(new File("test-data/spreadsheet/poc-xmlbomb.xlsx"));
+    void testAdditional() {
+        File testFile = getSampleFile("poc-xmlbomb.xlsx");
+        assertDoesNotThrow(() -> handleAdditional(testFile));
     }
 }

poi-ooxml-lite/build.gradle

@@ -141,3 +141,5 @@ jar {
     }
 }
 
+spotbugsTest.enabled = false
+spotbugsMain.enabled = false

poi-ooxml/src/main/java/org/apache/poi/poifs/crypt/dsig/DigestOutputStream.java

@@ -66,13 +66,14 @@ import org.ietf.jgss.Oid;
     }
 
     public byte[] sign() throws IOException, GeneralSecurityException {
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-        bos.write(getHashMagic());
-        bos.write(md.digest());
+        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            bos.write(getHashMagic());
+            bos.write(md.digest());
 
-        final Cipher cipher = CryptoFunctions.getCipher(key, CipherAlgorithm.rsa
-            , ChainingMode.ecb, null, Cipher.ENCRYPT_MODE, "PKCS1Padding");
-        return cipher.doFinal(bos.toByteArray());
+            final Cipher cipher = CryptoFunctions.getCipher(key, CipherAlgorithm.rsa
+                , ChainingMode.ecb, null, Cipher.ENCRYPT_MODE, "PKCS1Padding");
+            return cipher.doFinal(bos.toByteArray());
+        }
     }
 
     static boolean isMSCapi(final PrivateKey key) {
@@ -91,10 +92,9 @@ import org.ietf.jgss.Oid;
         // in an earlier release the hashMagic (aka DigestAlgorithmIdentifier) contained only
         // an object identifier, but to conform with the header generated by the
         // javax-signature API, the empty <associated parameters> are also included
-        try {
+        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
             final byte[] oidBytes = new Oid(algo.rsaOid).getDER();
 
-            final UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
             bos.write(0x30);
             bos.write(algo.hashSize+oidBytes.length+6);
             bos.write(0x30);

poi-ooxml/src/main/java/org/apache/poi/poifs/crypt/dsig/OOXMLURIDereferencer.java

@@ -90,12 +90,13 @@ public class OOXMLURIDereferencer implements URIDereferencer {
                 // although xmlsec has an option to ignore line breaks, currently this
                 // only affects .rels files, so we only modify these
                 // http://stackoverflow.com/questions/4728300
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-                for (int ch; (ch = dataStream.read()) != -1; ) {
-                    if (ch == 10 || ch == 13) continue;
-                    bos.write(ch);
+                try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+                    for (int ch; (ch = dataStream.read()) != -1; ) {
+                        if (ch == 10 || ch == 13) continue;
+                        bos.write(ch);
+                    }
+                    dataStream = bos.toInputStream();
                 }
-                dataStream = bos.toInputStream();
             }
         } catch (IOException e) {
             throw new URIReferenceException("I/O error: " + e.getMessage(), e);

poi-ooxml/src/main/java/org/apache/poi/poifs/crypt/dsig/facets/XAdESXLSignatureFacet.java

@@ -289,8 +289,7 @@ public class XAdESXLSignatureFacet implements SignatureFacet {
     }
 
     public static byte[] getC14nValue(List<Node> nodeList, String c14nAlgoId) {
-        UnsynchronizedByteArrayOutputStream c14nValue = new UnsynchronizedByteArrayOutputStream();
-        try {
+        try (UnsynchronizedByteArrayOutputStream c14nValue = new UnsynchronizedByteArrayOutputStream()) {
             for (Node node : nodeList) {
                 /*
                  * Re-initialize the c14n else the namespaces will get cached
@@ -299,12 +298,12 @@ public class XAdESXLSignatureFacet implements SignatureFacet {
                 Canonicalizer c14n = Canonicalizer.getInstance(c14nAlgoId);
                 c14n.canonicalizeSubtree(node, c14nValue);
             }
+            return c14nValue.toByteArray();
         } catch (RuntimeException e) {
             throw e;
         } catch (Exception e) {
             throw new RuntimeException("c14n error: " + e.getMessage(), e);
         }
-        return c14nValue.toByteArray();
     }
 
     private BigInteger getCrlNumber(X509CRL crl) {

poi-ooxml/src/main/java/org/apache/poi/xssf/usermodel/XSSFConditionalFormattingThreshold.java

@@ -27,34 +27,39 @@ import org.openxmlformats.schemas.spreadsheetml.x2006.main.STCfvoType;
  *  Colour Scale change thresholds
  */
 public class XSSFConditionalFormattingThreshold implements org.apache.poi.ss.usermodel.ConditionalFormattingThreshold {
-    private CTCfvo cfvo;
-    
+    private final CTCfvo cfvo;
+
     protected XSSFConditionalFormattingThreshold(CTCfvo cfvo) {
         this.cfvo = cfvo;
     }
-    
+
     protected CTCfvo getCTCfvo() {
         return cfvo;
     }
 
+    @Override
     public RangeType getRangeType() {
         return RangeType.byName(cfvo.getType().toString());
     }
+    @Override
     public void setRangeType(RangeType type) {
         STCfvoType.Enum xtype = STCfvoType.Enum.forString(type.name);
         cfvo.setType(xtype);
     }
 
+    @Override
     public String getFormula() {
         if (cfvo.getType() == STCfvoType.FORMULA) {
             return cfvo.getVal();
         }
         return null;
     }
+    @Override
     public void setFormula(String formula) {
         cfvo.setVal(formula);
     }
 
+    @Override
     public Double getValue() {
         if (cfvo.getType() == STCfvoType.FORMULA ||
             cfvo.getType() == STCfvoType.MIN ||
@@ -67,6 +72,7 @@ public class XSSFConditionalFormattingThreshold implements org.apache.poi.ss.use
             return null;
         }
     }
+    @Override
     public void setValue(Double value) {
         if (value == null) {
             cfvo.unsetVal();

poi-ooxml/src/main/java/org/apache/poi/xssf/usermodel/XSSFIconMultiStateFormatting.java

@@ -25,7 +25,7 @@ import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTIconSet;
 import org.openxmlformats.schemas.spreadsheetml.x2006.main.STIconSetType;
 
 /**
- * High level representation for Icon / Multi-State Formatting 
+ * High level representation for Icon / Multi-State Formatting
  *  component of Conditional Formatting settings
  */
 public class XSSFIconMultiStateFormatting implements IconMultiStateFormatting {
@@ -35,42 +35,50 @@ public class XSSFIconMultiStateFormatting implements IconMultiStateFormatting {
         _iconset = iconset;
     }
 
+    @Override
     public IconSet getIconSet() {
         String set = _iconset.getIconSet().toString();
         return IconSet.byName(set);
     }
+    @Override
     public void setIconSet(IconSet set) {
         STIconSetType.Enum xIconSet = STIconSetType.Enum.forString(set.name);
         _iconset.setIconSet(xIconSet);
     }
 
+    @Override
     public boolean isIconOnly() {
         if (_iconset.isSetShowValue())
             return !_iconset.getShowValue();
         return false;
     }
+    @Override
     public void setIconOnly(boolean only) {
         _iconset.setShowValue(!only);
     }
 
+    @Override
     public boolean isReversed() {
         if (_iconset.isSetReverse())
             return _iconset.getReverse();
         return false;
     }
+    @Override
     public void setReversed(boolean reversed) {
         _iconset.setReverse(reversed);
     }
 
+    @Override
     public XSSFConditionalFormattingThreshold[] getThresholds() {
         CTCfvo[] cfvos = _iconset.getCfvoArray();
-        XSSFConditionalFormattingThreshold[] t = 
+        XSSFConditionalFormattingThreshold[] t =
                 new XSSFConditionalFormattingThreshold[cfvos.length];
         for (int i=0; i<cfvos.length; i++) {
             t[i] = new XSSFConditionalFormattingThreshold(cfvos[i]);
         }
         return t;
     }
+    @Override
     public void setThresholds(ConditionalFormattingThreshold[] thresholds) {
         CTCfvo[] cfvos = new CTCfvo[thresholds.length];
         for (int i=0; i<thresholds.length; i++) {
@@ -78,6 +86,7 @@ public class XSSFIconMultiStateFormatting implements IconMultiStateFormatting {
         }
         _iconset.setCfvoArray(cfvos);
     }
+    @Override
     public XSSFConditionalFormattingThreshold createThreshold() {
         return new XSSFConditionalFormattingThreshold(_iconset.addNewCfvo());
     }

poi-ooxml/src/main/java/org/apache/poi/xssf/usermodel/XSSFWorkbookFactory.java

@@ -139,6 +139,7 @@ public class XSSFWorkbookFactory implements WorkbookProvider {
      *  @throws IOException if an error occurs while reading the data
      *  @throws EncryptedDocumentException If the wrong password is given for a protected file
      */
+    @Override
     @SuppressWarnings("resource")
     public XSSFWorkbook create(File file, String password, boolean readOnly) throws IOException {
         FileMagic fm = FileMagic.valueOf(file);

poi-ooxml/src/test/java/org/apache/poi/xssf/extractor/TestXSSFExportToXML.java

@@ -45,7 +45,6 @@ import org.apache.poi.xssf.XSSFTestDataSamples;
 import org.apache.poi.xssf.model.MapInfo;
 import org.apache.poi.xssf.usermodel.XSSFMap;
 import org.apache.poi.xssf.usermodel.XSSFWorkbook;
-import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.xml.sax.SAXException;
 import org.xml.sax.SAXParseException;
@@ -216,15 +215,13 @@ public final class TestXSSFExportToXML {
     }
 
     @Test
-    @Disabled(value="Fails, but I don't know if it is ok or not...")
     void testExportToXMLSingleAttributeNamespace() throws Exception {
         try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("CustomXMLMapping-singleattributenamespace.xlsx")) {
-
             for (XSSFMap map : wb.getCustomXMLMappings()) {
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-
                 UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
-                exporter.exportToXML(os, true);
+                SAXParseException ex = assertThrows(SAXParseException.class, () -> exporter.exportToXML(os, true));
+                assertEquals("schema_reference: Failed to read schema document 'Schema11', because 'file' access is not allowed due to restriction set by the accessExternalSchema property.", ex.getMessage().trim());
             }
         }
     }

poi-ooxml/src/test/java/org/apache/poi/xssf/streaming/TestDeferredSXSSFWorkbook.java

@@ -41,6 +41,8 @@ import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
 
 public final class TestDeferredSXSSFWorkbook extends BaseTestXWorkbook {
 
@@ -90,112 +92,109 @@ public final class TestDeferredSXSSFWorkbook extends BaseTestXWorkbook {
 
     @Test
     void existingWorkbook() throws IOException {
-        XSSFWorkbook xssfWb1 = new XSSFWorkbook();
-        xssfWb1.createSheet("S1");
-        DeferredSXSSFWorkbook wb1 = new DeferredSXSSFWorkbook(xssfWb1);
-        XSSFWorkbook xssfWb2 = DeferredSXSSFITestDataProvider.instance.writeOutAndReadBack(wb1);
-        assertTrue(wb1.dispose());
-
-        DeferredSXSSFWorkbook wb2 = new DeferredSXSSFWorkbook(xssfWb2);
-        assertEquals(1, wb2.getNumberOfSheets());
-        Sheet sheet = wb2.getStreamingSheetAt(0);
-        assertNotNull(sheet);
-        assertEquals("S1", sheet.getSheetName());
-        assertTrue(wb2.dispose());
-        xssfWb2.close();
-        xssfWb1.close();
-
-        wb2.close();
-        wb1.close();
+        try (XSSFWorkbook xssfWb1 = new XSSFWorkbook()) {
+            xssfWb1.createSheet("S1");
+            try (DeferredSXSSFWorkbook wb1 = new DeferredSXSSFWorkbook(xssfWb1);
+                 XSSFWorkbook xssfWb2 = DeferredSXSSFITestDataProvider.instance.writeOutAndReadBack(wb1)) {
+                assertTrue(wb1.dispose());
+
+                try (DeferredSXSSFWorkbook wb2 = new DeferredSXSSFWorkbook(xssfWb2)) {
+                    assertEquals(1, wb2.getNumberOfSheets());
+                    Sheet sheet = wb2.getStreamingSheetAt(0);
+                    assertNotNull(sheet);
+                    assertEquals("S1", sheet.getSheetName());
+                    assertTrue(wb2.dispose());
+                }
+            }
+        }
     }
 
     @Test
     void addToExistingWorkbook() throws IOException {
-        XSSFWorkbook xssfWb1 = new XSSFWorkbook();
-        xssfWb1.createSheet("S1");
-        Sheet sheet = xssfWb1.createSheet("S2");
-        Row row = sheet.createRow(1);
-        Cell cell = row.createCell(1);
-        cell.setCellValue("value 2_1_1");
-        DeferredSXSSFWorkbook wb1 = new DeferredSXSSFWorkbook(xssfWb1);
-        XSSFWorkbook xssfWb2 = DeferredSXSSFITestDataProvider.instance.writeOutAndReadBack(wb1);
-        assertTrue(wb1.dispose());
-        xssfWb1.close();
-
-        DeferredSXSSFWorkbook wb2 = new DeferredSXSSFWorkbook(xssfWb2);
-        // Add a row to the existing empty sheet
-        DeferredSXSSFSheet ssheet1 = wb2.getStreamingSheetAt(0);
-        ssheet1.setRowGenerator((ssxSheet) -> {
-            Row row1_1 = ssxSheet.createRow(1);
-            Cell cell1_1_1 = row1_1.createCell(1);
-            cell1_1_1.setCellValue("value 1_1_1");
-        });
-
-        // Add a row to the existing non-empty sheet
-        DeferredSXSSFSheet ssheet2 = wb2.getStreamingSheetAt(1);
-        ssheet2.setRowGenerator((ssxSheet) -> {
-            Row row2_2 = ssxSheet.createRow(2);
-            Cell cell2_2_1 = row2_2.createCell(1);
-            cell2_2_1.setCellValue("value 2_2_1");
-        });
-        // Add a sheet with one row
-        DeferredSXSSFSheet ssheet3 = wb2.createSheet("S3");
-        ssheet3.setRowGenerator((ssxSheet) -> {
-            Row row3_1 = ssxSheet.createRow(1);
-            Cell cell3_1_1 = row3_1.createCell(1);
-            cell3_1_1.setCellValue("value 3_1_1");
-        });
-
-        XSSFWorkbook xssfWb3 = DeferredSXSSFITestDataProvider.instance.writeOutAndReadBack(wb2);
-        wb2.close();
-
-        assertEquals(3, xssfWb3.getNumberOfSheets());
-        // Verify sheet 1
-        XSSFSheet sheet1 = xssfWb3.getSheetAt(0);
-        assertEquals("S1", sheet1.getSheetName());
-        assertEquals(1, sheet1.getPhysicalNumberOfRows());
-        XSSFRow row1_1 = sheet1.getRow(1);
-        assertNotNull(row1_1);
-        XSSFCell cell1_1_1 = row1_1.getCell(1);
-        assertNotNull(cell1_1_1);
-        assertEquals("value 1_1_1", cell1_1_1.getStringCellValue());
-        // Verify sheet 2
-        XSSFSheet sheet2 = xssfWb3.getSheetAt(1);
-        assertEquals("S2", sheet2.getSheetName());
-        assertEquals(2, sheet2.getPhysicalNumberOfRows());
-        Row row2_1 = sheet2.getRow(1);
-        assertNotNull(row2_1);
-        Cell cell2_1_1 = row2_1.getCell(1);
-        assertNotNull(cell2_1_1);
-        assertEquals("value 2_1_1", cell2_1_1.getStringCellValue());
-        XSSFRow row2_2 = sheet2.getRow(2);
-        assertNotNull(row2_2);
-        XSSFCell cell2_2_1 = row2_2.getCell(1);
-        assertNotNull(cell2_2_1);
-        assertEquals("value 2_2_1", cell2_2_1.getStringCellValue());
-        // Verify sheet 3
-        XSSFSheet sheet3 = xssfWb3.getSheetAt(2);
-        assertEquals("S3", sheet3.getSheetName());
-        assertEquals(1, sheet3.getPhysicalNumberOfRows());
-        XSSFRow row3_1 = sheet3.getRow(1);
-        assertNotNull(row3_1);
-        XSSFCell cell3_1_1 = row3_1.getCell(1);
-        assertNotNull(cell3_1_1);
-        assertEquals("value 3_1_1", cell3_1_1.getStringCellValue());
-
-        xssfWb2.close();
-        xssfWb3.close();
-        wb1.close();
+        try (XSSFWorkbook xssfWb1 = new XSSFWorkbook()) {
+            xssfWb1.createSheet("S1");
+            Sheet sheet = xssfWb1.createSheet("S2");
+            Row row = sheet.createRow(1);
+            Cell cell = row.createCell(1);
+            cell.setCellValue("value 2_1_1");
+
+            try (DeferredSXSSFWorkbook wb1 = new DeferredSXSSFWorkbook(xssfWb1);
+                 XSSFWorkbook xssfWb2 = DeferredSXSSFITestDataProvider.instance.writeOutAndReadBack(wb1)) {
+                assertTrue(wb1.dispose());
+
+                try (DeferredSXSSFWorkbook wb2 = new DeferredSXSSFWorkbook(xssfWb2)) {
+                    // Add a row to the existing empty sheet
+                    DeferredSXSSFSheet ssheet1 = wb2.getStreamingSheetAt(0);
+                    ssheet1.setRowGenerator((ssxSheet) -> {
+                        Row row1_1 = ssxSheet.createRow(1);
+                        Cell cell1_1_1 = row1_1.createCell(1);
+                        cell1_1_1.setCellValue("value 1_1_1");
+                    });
+
+                    // Add a row to the existing non-empty sheet
+                    DeferredSXSSFSheet ssheet2 = wb2.getStreamingSheetAt(1);
+                    ssheet2.setRowGenerator((ssxSheet) -> {
+                        Row row2_2 = ssxSheet.createRow(2);
+                        Cell cell2_2_1 = row2_2.createCell(1);
+                        cell2_2_1.setCellValue("value 2_2_1");
+                    });
+                    // Add a sheet with one row
+                    DeferredSXSSFSheet ssheet3 = wb2.createSheet("S3");
+                    ssheet3.setRowGenerator((ssxSheet) -> {
+                        Row row3_1 = ssxSheet.createRow(1);
+                        Cell cell3_1_1 = row3_1.createCell(1);
+                        cell3_1_1.setCellValue("value 3_1_1");
+                    });
+
+                    try (XSSFWorkbook xssfWb3 = DeferredSXSSFITestDataProvider.instance.writeOutAndReadBack(wb2)) {
+
+                        assertEquals(3, xssfWb3.getNumberOfSheets());
+                        // Verify sheet 1
+                        XSSFSheet sheet1 = xssfWb3.getSheetAt(0);
+                        assertEquals("S1", sheet1.getSheetName());
+                        assertEquals(1, sheet1.getPhysicalNumberOfRows());
+                        XSSFRow row1_1 = sheet1.getRow(1);
+                        assertNotNull(row1_1);
+                        XSSFCell cell1_1_1 = row1_1.getCell(1);
+                        assertNotNull(cell1_1_1);
+                        assertEquals("value 1_1_1", cell1_1_1.getStringCellValue());
+                        // Verify sheet 2
+                        XSSFSheet sheet2 = xssfWb3.getSheetAt(1);
+                        assertEquals("S2", sheet2.getSheetName());
+                        assertEquals(2, sheet2.getPhysicalNumberOfRows());
+                        Row row2_1 = sheet2.getRow(1);
+                        assertNotNull(row2_1);
+                        Cell cell2_1_1 = row2_1.getCell(1);
+                        assertNotNull(cell2_1_1);
+                        assertEquals("value 2_1_1", cell2_1_1.getStringCellValue());
+                        XSSFRow row2_2 = sheet2.getRow(2);
+                        assertNotNull(row2_2);
+                        XSSFCell cell2_2_1 = row2_2.getCell(1);
+                        assertNotNull(cell2_2_1);
+                        assertEquals("value 2_2_1", cell2_2_1.getStringCellValue());
+                        // Verify sheet 3
+                        XSSFSheet sheet3 = xssfWb3.getSheetAt(2);
+                        assertEquals("S3", sheet3.getSheetName());
+                        assertEquals(1, sheet3.getPhysicalNumberOfRows());
+                        XSSFRow row3_1 = sheet3.getRow(1);
+                        assertNotNull(row3_1);
+                        XSSFCell cell3_1_1 = row3_1.getCell(1);
+                        assertNotNull(cell3_1_1);
+                        assertEquals("value 3_1_1", cell3_1_1.getStringCellValue());
+                    }
+                }
+            }
+        }
     }
 
     @Test
     void sheetdataWriter() throws IOException {
-        DeferredSXSSFWorkbook wb = new DeferredSXSSFWorkbook();
-        SXSSFSheet sh = wb.createSheet();
-        assertSame(sh.getClass(), DeferredSXSSFSheet.class);
-        SheetDataWriter wr = sh.getSheetDataWriter();
-        assertNull(wr);
-        wb.close();
+        try (DeferredSXSSFWorkbook wb = new DeferredSXSSFWorkbook()) {
+            SXSSFSheet sh = wb.createSheet();
+            assertSame(sh.getClass(), DeferredSXSSFSheet.class);
+            SheetDataWriter wr = sh.getSheetDataWriter();
+            assertNull(wr);
+        }
     }
 
     @Test
@@ -225,71 +224,65 @@ public final class TestDeferredSXSSFWorkbook extends BaseTestXWorkbook {
 
     @Test
     void gzipSheetdataWriter() throws IOException {
-        DeferredSXSSFWorkbook wb = new DeferredSXSSFWorkbook();
-
-        final int rowNum = 1000;
-        final int sheetNum = 5;
-        populateData(wb, 1000, 5);
-
-        XSSFWorkbook xwb = DeferredSXSSFITestDataProvider.instance.writeOutAndReadBack(wb);
-        for (int i = 0; i < sheetNum; i++) {
-            Sheet sh = xwb.getSheetAt(i);
-            assertEquals("sheet" + i, sh.getSheetName());
-            for (int j = 0; j < rowNum; j++) {
-                Row row = sh.getRow(j);
-                assertNotNull(row, "row[" + j + "]");
-                Cell cell1 = row.getCell(0);
-                assertEquals(new CellReference(cell1).formatAsString(), cell1.getStringCellValue());
-
-                Cell cell2 = row.getCell(1);
-                assertEquals(i, (int) cell2.getNumericCellValue());
-
-                Cell cell3 = row.getCell(2);
-                assertEquals(j, (int) cell3.getNumericCellValue());
+        try (DeferredSXSSFWorkbook wb = new DeferredSXSSFWorkbook()) {
+
+            final int rowNum = 1000;
+            final int sheetNum = 5;
+            populateData(wb);
+
+            try (XSSFWorkbook xwb = DeferredSXSSFITestDataProvider.instance.writeOutAndReadBack(wb)) {
+                for (int i = 0; i < sheetNum; i++) {
+                    Sheet sh = xwb.getSheetAt(i);
+                    assertEquals("sheet" + i, sh.getSheetName());
+                    for (int j = 0; j < rowNum; j++) {
+                        Row row = sh.getRow(j);
+                        assertNotNull(row, "row[" + j + "]");
+                        Cell cell1 = row.getCell(0);
+                        assertEquals(new CellReference(cell1).formatAsString(), cell1.getStringCellValue());
+
+                        Cell cell2 = row.getCell(1);
+                        assertEquals(i, (int) cell2.getNumericCellValue());
+
+                        Cell cell3 = row.getCell(2);
+                        assertEquals(j, (int) cell3.getNumericCellValue());
+                    }
+                }
+
+                assertTrue(wb.dispose());
             }
         }
-
-        assertTrue(wb.dispose());
-        xwb.close();
-        wb.close();
     }
 
-    @Test
-    void workbookDispose() throws IOException {
-        DeferredSXSSFWorkbook wb1 = new DeferredSXSSFWorkbook();
-        // the underlying writer is SheetDataWriter
-        assertWorkbookDispose(wb1);
-        wb1.close();
-
-        DeferredSXSSFWorkbook wb2 = new DeferredSXSSFWorkbook();
-        wb2.setCompressTempFiles(true);
-        // the underlying writer is GZIPSheetDataWriter
-        assertWorkbookDispose(wb2);
-        wb2.close();
-    }
+    @ParameterizedTest
+    @ValueSource(booleans = {false, true})
+    void workbookDispose(boolean compressTempFiles) throws IOException {
+        try (DeferredSXSSFWorkbook wb = new DeferredSXSSFWorkbook()) {
+            // compressTempFiles == false: the underlying writer is SheetDataWriter
+            // compressTempFiles == true: the underlying writer is GZIPSheetDataWriter
+            wb.setCompressTempFiles(compressTempFiles);
 
-    private static void assertWorkbookDispose(DeferredSXSSFWorkbook wb) {
-        populateData(wb, 1000, 5);
+            populateData(wb);
 
-        for (Sheet sheet : wb) {
-            DeferredSXSSFSheet sxSheet = (DeferredSXSSFSheet) sheet;
-            assertNull(sxSheet.getSheetDataWriter());
-        }
+            for (Sheet sheet : wb) {
+                DeferredSXSSFSheet sxSheet = (DeferredSXSSFSheet) sheet;
+                assertNull(sxSheet.getSheetDataWriter());
+            }
 
-        assertTrue(wb.dispose());
+            assertTrue(wb.dispose());
 
-        for (Sheet sheet : wb) {
-            DeferredSXSSFSheet sxSheet = (DeferredSXSSFSheet) sheet;
-            assertNull(sxSheet.getSheetDataWriter());
+            for (Sheet sheet : wb) {
+                DeferredSXSSFSheet sxSheet = (DeferredSXSSFSheet) sheet;
+                assertNull(sxSheet.getSheetDataWriter());
+            }
         }
     }
 
-    private static void populateData(DeferredSXSSFWorkbook wb, final int rowNum, final int sheetNum) {
-        for (int i = 0; i < sheetNum; i++) {
+    private static void populateData(DeferredSXSSFWorkbook wb) {
+        for (int i = 0; i < 5; i++) {
             DeferredSXSSFSheet sheet = wb.createSheet("sheet" + i);
             int index = i;
             sheet.setRowGenerator((sh) -> {
-                for (int j = 0; j < rowNum; j++) {
+                for (int j = 0; j < 1000; j++) {
                     Row row = sh.createRow(j);
                     Cell cell1 = row.createCell(0);
                     cell1.setCellValue(new CellReference(cell1).formatAsString());
@@ -304,7 +297,8 @@ public final class TestDeferredSXSSFWorkbook extends BaseTestXWorkbook {
         }
     }
 
-    void changeSheetNameWithSharedFormulas() {
-        /* not implemented */
+    @Override
+    @Disabled("not implemented")
+    protected void changeSheetNameWithSharedFormulas() {
     }
 }

poi-ooxml/src/test/java/org/apache/poi/xssf/streaming/TestSXSSFWorkbook.java

@@ -55,6 +55,8 @@ import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
 
 public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
 
@@ -98,225 +100,201 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
 
     @Test
     void existingWorkbook() throws IOException {
-        XSSFWorkbook xssfWb1 = new XSSFWorkbook();
-        xssfWb1.createSheet("S1");
-        SXSSFWorkbook wb1 = new SXSSFWorkbook(xssfWb1);
-        XSSFWorkbook xssfWb2 = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb1);
-        assertTrue(wb1.dispose());
-
-        SXSSFWorkbook wb2 = new SXSSFWorkbook(xssfWb2);
-        assertEquals(1, wb2.getNumberOfSheets());
-        Sheet sheet  = wb2.getSheetAt(0);
-        assertNotNull(sheet);
-        assertEquals("S1", sheet.getSheetName());
-        assertTrue(wb2.dispose());
-        xssfWb2.close();
-        xssfWb1.close();
-
-        wb2.close();
-        wb1.close();
+        try (XSSFWorkbook xssfWb1 = new XSSFWorkbook()) {
+            xssfWb1.createSheet("S1");
+            try (SXSSFWorkbook wb1 = new SXSSFWorkbook(xssfWb1);
+                 XSSFWorkbook xssfWb2 = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb1)) {
+                assertTrue(wb1.dispose());
+
+                try (SXSSFWorkbook wb2 = new SXSSFWorkbook(xssfWb2)) {
+                    assertEquals(1, wb2.getNumberOfSheets());
+                    Sheet sheet = wb2.getSheetAt(0);
+                    assertNotNull(sheet);
+                    assertEquals("S1", sheet.getSheetName());
+                    assertTrue(wb2.dispose());
+                }
+            }
+        }
     }
 
     @Test
     void useSharedStringsTable() throws Exception {
-        SXSSFWorkbook wb = new SXSSFWorkbook(null, 10, false, true);
-
-        SharedStringsTable sss = wb.getSharedStringSource();
-
-        assertNotNull(sss);
-
-        Row row = wb.createSheet("S1").createRow(0);
-
-        row.createCell(0).setCellValue("A");
-        row.createCell(1).setCellValue("B");
-        row.createCell(2).setCellValue("A");
-
-        XSSFWorkbook xssfWorkbook = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb);
-        sss = wb.getSharedStringSource();
-        assertEquals(2, sss.getUniqueCount());
-        assertTrue(wb.dispose());
-
-        Sheet sheet1 = xssfWorkbook.getSheetAt(0);
-        assertEquals("S1", sheet1.getSheetName());
-        assertEquals(1, sheet1.getPhysicalNumberOfRows());
-        row = sheet1.getRow(0);
-        assertNotNull(row);
-        Cell cell = row.getCell(0);
-        assertNotNull(cell);
-        assertEquals("A", cell.getStringCellValue());
-        cell = row.getCell(1);
-        assertNotNull(cell);
-        assertEquals("B", cell.getStringCellValue());
-        cell = row.getCell(2);
-        assertNotNull(cell);
-        assertEquals("A", cell.getStringCellValue());
-
-        xssfWorkbook.close();
-        wb.close();
+        try (SXSSFWorkbook wb = new SXSSFWorkbook(null, 10, false, true)) {
+
+            SharedStringsTable sss = wb.getSharedStringSource();
+
+            assertNotNull(sss);
+
+            Row row = wb.createSheet("S1").createRow(0);
+
+            row.createCell(0).setCellValue("A");
+            row.createCell(1).setCellValue("B");
+            row.createCell(2).setCellValue("A");
+
+            try (XSSFWorkbook xssfWorkbook = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb)) {
+                sss = wb.getSharedStringSource();
+                assertEquals(2, sss.getUniqueCount());
+                assertTrue(wb.dispose());
+
+                Sheet sheet1 = xssfWorkbook.getSheetAt(0);
+                assertEquals("S1", sheet1.getSheetName());
+                assertEquals(1, sheet1.getPhysicalNumberOfRows());
+                row = sheet1.getRow(0);
+                assertNotNull(row);
+                Cell cell = row.getCell(0);
+                assertNotNull(cell);
+                assertEquals("A", cell.getStringCellValue());
+                cell = row.getCell(1);
+                assertNotNull(cell);
+                assertEquals("B", cell.getStringCellValue());
+                cell = row.getCell(2);
+                assertNotNull(cell);
+                assertEquals("A", cell.getStringCellValue());
+            }
+        }
     }
 
     @Test
     void addToExistingWorkbook() throws IOException {
-        XSSFWorkbook xssfWb1 = new XSSFWorkbook();
-        xssfWb1.createSheet("S1");
-        Sheet sheet = xssfWb1.createSheet("S2");
-        Row row = sheet.createRow(1);
-        Cell cell = row.createCell(1);
-        cell.setCellValue("value 2_1_1");
-        SXSSFWorkbook wb1 = new SXSSFWorkbook(xssfWb1);
-        XSSFWorkbook xssfWb2 = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb1);
-        assertTrue(wb1.dispose());
-        xssfWb1.close();
-
-        SXSSFWorkbook wb2 = new SXSSFWorkbook(xssfWb2);
-        // Add a row to the existing empty sheet
-        Sheet sheet1 = wb2.getSheetAt(0);
-        Row row1_1 = sheet1.createRow(1);
-        Cell cell1_1_1 = row1_1.createCell(1);
-        cell1_1_1.setCellValue("value 1_1_1");
-
-        // Add a row to the existing non-empty sheet
-        Sheet sheet2 = wb2.getSheetAt(1);
-        Row row2_2 = sheet2.createRow(2);
-        Cell cell2_2_1 = row2_2.createCell(1);
-        cell2_2_1.setCellValue("value 2_2_1");
-
-        // Add a sheet with one row
-        Sheet sheet3 = wb2.createSheet("S3");
-        Row row3_1 = sheet3.createRow(1);
-        Cell cell3_1_1 = row3_1.createCell(1);
-        cell3_1_1.setCellValue("value 3_1_1");
-
-        XSSFWorkbook xssfWb3 = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb2);
-        wb2.close();
-
-        assertEquals(3, xssfWb3.getNumberOfSheets());
-        // Verify sheet 1
-        sheet1 = xssfWb3.getSheetAt(0);
-        assertEquals("S1", sheet1.getSheetName());
-        assertEquals(1, sheet1.getPhysicalNumberOfRows());
-        row1_1 = sheet1.getRow(1);
-        assertNotNull(row1_1);
-        cell1_1_1 = row1_1.getCell(1);
-        assertNotNull(cell1_1_1);
-        assertEquals("value 1_1_1", cell1_1_1.getStringCellValue());
-        // Verify sheet 2
-        sheet2 = xssfWb3.getSheetAt(1);
-        assertEquals("S2", sheet2.getSheetName());
-        assertEquals(2, sheet2.getPhysicalNumberOfRows());
-        Row row2_1 = sheet2.getRow(1);
-        assertNotNull(row2_1);
-        Cell cell2_1_1 = row2_1.getCell(1);
-        assertNotNull(cell2_1_1);
-        assertEquals("value 2_1_1", cell2_1_1.getStringCellValue());
-        row2_2 = sheet2.getRow(2);
-        assertNotNull(row2_2);
-        cell2_2_1 = row2_2.getCell(1);
-        assertNotNull(cell2_2_1);
-        assertEquals("value 2_2_1", cell2_2_1.getStringCellValue());
-        // Verify sheet 3
-        sheet3 = xssfWb3.getSheetAt(2);
-        assertEquals("S3", sheet3.getSheetName());
-        assertEquals(1, sheet3.getPhysicalNumberOfRows());
-        row3_1 = sheet3.getRow(1);
-        assertNotNull(row3_1);
-        cell3_1_1 = row3_1.getCell(1);
-        assertNotNull(cell3_1_1);
-        assertEquals("value 3_1_1", cell3_1_1.getStringCellValue());
-
-        xssfWb2.close();
-        xssfWb3.close();
-        wb1.close();
+        try (XSSFWorkbook xssfWb1 = new XSSFWorkbook()) {
+            xssfWb1.createSheet("S1");
+            Sheet sheet = xssfWb1.createSheet("S2");
+            Row row = sheet.createRow(1);
+            Cell cell = row.createCell(1);
+            cell.setCellValue("value 2_1_1");
+            try (SXSSFWorkbook wb1 = new SXSSFWorkbook(xssfWb1);
+                 XSSFWorkbook xssfWb2 = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb1)) {
+                assertTrue(wb1.dispose());
+
+                try (SXSSFWorkbook wb2 = new SXSSFWorkbook(xssfWb2)) {
+                    // Add a row to the existing empty sheet
+                    Sheet sheet1 = wb2.getSheetAt(0);
+                    Row row1_1 = sheet1.createRow(1);
+                    Cell cell1_1_1 = row1_1.createCell(1);
+                    cell1_1_1.setCellValue("value 1_1_1");
+
+                    // Add a row to the existing non-empty sheet
+                    Sheet sheet2 = wb2.getSheetAt(1);
+                    Row row2_2 = sheet2.createRow(2);
+                    Cell cell2_2_1 = row2_2.createCell(1);
+                    cell2_2_1.setCellValue("value 2_2_1");
+
+                    // Add a sheet with one row
+                    Sheet sheet3 = wb2.createSheet("S3");
+                    Row row3_1 = sheet3.createRow(1);
+                    Cell cell3_1_1 = row3_1.createCell(1);
+                    cell3_1_1.setCellValue("value 3_1_1");
+
+                    try (XSSFWorkbook xssfWb3 = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb2)) {
+                        assertEquals(3, xssfWb3.getNumberOfSheets());
+                        // Verify sheet 1
+                        sheet1 = xssfWb3.getSheetAt(0);
+                        assertEquals("S1", sheet1.getSheetName());
+                        assertEquals(1, sheet1.getPhysicalNumberOfRows());
+                        row1_1 = sheet1.getRow(1);
+                        assertNotNull(row1_1);
+                        cell1_1_1 = row1_1.getCell(1);
+                        assertNotNull(cell1_1_1);
+                        assertEquals("value 1_1_1", cell1_1_1.getStringCellValue());
+                        // Verify sheet 2
+                        sheet2 = xssfWb3.getSheetAt(1);
+                        assertEquals("S2", sheet2.getSheetName());
+                        assertEquals(2, sheet2.getPhysicalNumberOfRows());
+                        Row row2_1 = sheet2.getRow(1);
+                        assertNotNull(row2_1);
+                        Cell cell2_1_1 = row2_1.getCell(1);
+                        assertNotNull(cell2_1_1);
+                        assertEquals("value 2_1_1", cell2_1_1.getStringCellValue());
+                        row2_2 = sheet2.getRow(2);
+                        assertNotNull(row2_2);
+                        cell2_2_1 = row2_2.getCell(1);
+                        assertNotNull(cell2_2_1);
+                        assertEquals("value 2_2_1", cell2_2_1.getStringCellValue());
+                        // Verify sheet 3
+                        sheet3 = xssfWb3.getSheetAt(2);
+                        assertEquals("S3", sheet3.getSheetName());
+                        assertEquals(1, sheet3.getPhysicalNumberOfRows());
+                        row3_1 = sheet3.getRow(1);
+                        assertNotNull(row3_1);
+                        cell3_1_1 = row3_1.getCell(1);
+                        assertNotNull(cell3_1_1);
+                        assertEquals("value 3_1_1", cell3_1_1.getStringCellValue());
+                    }
+                }
+            }
+        }
     }
 
     @Test
     void sheetdataWriter() throws IOException{
-        SXSSFWorkbook wb = new SXSSFWorkbook();
-        SXSSFSheet sh = wb.createSheet();
-        SheetDataWriter wr = sh.getSheetDataWriter();
-        assertSame(wr.getClass(), SheetDataWriter.class);
-        File tmp = wr.getTempFile();
-        assertStartsWith(tmp.getName(), "poi-sxssf-sheet");
-        assertEndsWith(tmp.getName(), ".xml");
-        assertTrue(wb.dispose());
-        wb.close();
-
-        wb = new SXSSFWorkbook();
-        wb.setCompressTempFiles(true);
-        sh = wb.createSheet();
-        wr = sh.getSheetDataWriter();
-        assertSame(wr.getClass(), GZIPSheetDataWriter.class);
-        tmp = wr.getTempFile();
-        assertStartsWith(tmp.getName(), "poi-sxssf-sheet-xml");
-        assertEndsWith(tmp.getName(), ".gz");
-        assertTrue(wb.dispose());
-        wb.close();
+        try (SXSSFWorkbook wb = new SXSSFWorkbook()) {
+            SXSSFSheet sh = wb.createSheet();
+            SheetDataWriter wr = sh.getSheetDataWriter();
+            assertSame(wr.getClass(), SheetDataWriter.class);
+            File tmp = wr.getTempFile();
+            assertStartsWith(tmp.getName(), "poi-sxssf-sheet");
+            assertEndsWith(tmp.getName(), ".xml");
+            assertTrue(wb.dispose());
+        }
 
-        //Test escaping of Unicode control characters
-        wb = new SXSSFWorkbook();
-        wb.createSheet("S1").createRow(0).createCell(0).setCellValue("value\u0019");
-        XSSFWorkbook xssfWorkbook = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb);
-        Cell cell = xssfWorkbook.getSheet("S1").getRow(0).getCell(0);
-        assertEquals("value?", cell.getStringCellValue());
-
-        assertTrue(wb.dispose());
-        wb.close();
-        xssfWorkbook.close();
-    }
+        try (SXSSFWorkbook wb = new SXSSFWorkbook()) {
+            wb.setCompressTempFiles(true);
+            SXSSFSheet sh = wb.createSheet();
+            SheetDataWriter wr = sh.getSheetDataWriter();
+            assertSame(wr.getClass(), GZIPSheetDataWriter.class);
+            File tmp = wr.getTempFile();
+            assertStartsWith(tmp.getName(), "poi-sxssf-sheet-xml");
+            assertEndsWith(tmp.getName(), ".gz");
+            assertTrue(wb.dispose());
+        }
 
-    @Test
-    void gzipSheetdataWriter() throws IOException {
-        SXSSFWorkbook wb = new SXSSFWorkbook();
-        wb.setCompressTempFiles(true);
-
-        final int rowNum = 1000;
-        final int sheetNum = 5;
-        populateData(wb, 1000, 5);
-
-        XSSFWorkbook xwb = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb);
-        for(int i = 0; i < sheetNum; i++){
-            Sheet sh = xwb.getSheetAt(i);
-            assertEquals("sheet" + i, sh.getSheetName());
-            for(int j = 0; j < rowNum; j++){
-                Row row = sh.getRow(j);
-                assertNotNull(row, "row[" + j + "]");
-                Cell cell1 = row.getCell(0);
-                assertEquals(new CellReference(cell1).formatAsString(), cell1.getStringCellValue());
-
-                Cell cell2 = row.getCell(1);
-                assertEquals(i, (int)cell2.getNumericCellValue());
-
-                Cell cell3 = row.getCell(2);
-                assertEquals(j, (int)cell3.getNumericCellValue());
+        //Test escaping of Unicode control characters
+        try (SXSSFWorkbook wb = new SXSSFWorkbook()) {
+            wb.createSheet("S1").createRow(0).createCell(0).setCellValue("value\u0019");
+            try (XSSFWorkbook xssfWorkbook = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb)) {
+                Cell cell = xssfWorkbook.getSheet("S1").getRow(0).getCell(0);
+                assertEquals("value?", cell.getStringCellValue());
+                assertTrue(wb.dispose());
             }
         }
-
-        assertTrue(wb.dispose());
-        xwb.close();
-        wb.close();
     }
 
-    private static void assertWorkbookDispose(SXSSFWorkbook wb)
-    {
-        populateData(wb, 1000, 5);
-
-        for (Sheet sheet : wb) {
-            SXSSFSheet sxSheet = (SXSSFSheet) sheet;
-            assertTrue(sxSheet.getSheetDataWriter().getTempFile().exists());
-        }
-
-        assertTrue(wb.dispose());
+    @Test
+    void gzipSheetdataWriter() throws IOException {
+        try (SXSSFWorkbook wb = new SXSSFWorkbook()) {
+            wb.setCompressTempFiles(true);
+
+            final int rowNum = 1000;
+            final int sheetNum = 5;
+            populateData(wb);
+
+            try (XSSFWorkbook xwb = SXSSFITestDataProvider.instance.writeOutAndReadBack(wb)) {
+                for (int i = 0; i < sheetNum; i++) {
+                    Sheet sh = xwb.getSheetAt(i);
+                    assertEquals("sheet" + i, sh.getSheetName());
+                    for (int j = 0; j < rowNum; j++) {
+                        Row row = sh.getRow(j);
+                        assertNotNull(row, "row[" + j + "]");
+                        Cell cell1 = row.getCell(0);
+                        assertEquals(new CellReference(cell1).formatAsString(), cell1.getStringCellValue());
+
+                        Cell cell2 = row.getCell(1);
+                        assertEquals(i, (int) cell2.getNumericCellValue());
+
+                        Cell cell3 = row.getCell(2);
+                        assertEquals(j, (int) cell3.getNumericCellValue());
+                    }
+                }
 
-        for (Sheet sheet : wb) {
-            SXSSFSheet sxSheet = (SXSSFSheet) sheet;
-            assertFalse(sxSheet.getSheetDataWriter().getTempFile().exists());
+                assertTrue(wb.dispose());
+            }
         }
     }
 
-    private static void populateData(Workbook wb, final int rowNum, final int sheetNum) {
-        for(int i = 0; i < sheetNum; i++){
+    private static void populateData(Workbook wb) {
+        for(int i = 0; i < 5; i++){
             Sheet sh = wb.createSheet("sheet" + i);
-            for(int j = 0; j < rowNum; j++){
+            for(int j = 0; j < 1000; j++){
                 Row row = sh.createRow(j);
                 Cell cell1 = row.createCell(0);
                 cell1.setCellValue(new CellReference(cell1).formatAsString());
@@ -330,28 +308,40 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
         }
     }
 
-    @Test
-    void workbookDispose() throws IOException {
-        SXSSFWorkbook wb1 = new SXSSFWorkbook();
-        // the underlying writer is SheetDataWriter
-        assertWorkbookDispose(wb1);
-        wb1.close();
-
-        SXSSFWorkbook wb2 = new SXSSFWorkbook();
-        wb2.setCompressTempFiles(true);
-        // the underlying writer is GZIPSheetDataWriter
-        assertWorkbookDispose(wb2);
-        wb2.close();
+    @ParameterizedTest
+    @ValueSource(booleans = {false, true})
+    void workbookDispose(boolean compressTempFiles) throws IOException {
+        try (SXSSFWorkbook wb = new SXSSFWorkbook()) {
+            // compressTempFiles == false: the underlying writer is SheetDataWriter
+            // compressTempFiles == true: the underlying writer is GZIPSheetDataWriter
+            wb.setCompressTempFiles(compressTempFiles);
+
+            populateData(wb);
+
+            for (Sheet sheet : wb) {
+                SXSSFSheet sxSheet = (SXSSFSheet) sheet;
+                assertTrue(sxSheet.getSheetDataWriter().getTempFile().exists());
+            }
+
+            assertTrue(wb.dispose());
+
+            for (Sheet sheet : wb) {
+                SXSSFSheet sxSheet = (SXSSFSheet) sheet;
+                assertFalse(sxSheet.getSheetDataWriter().getTempFile().exists());
+            }
+        }
     }
 
     @Test
     void bug53515() throws Exception {
         try (Workbook wb1 = new SXSSFWorkbook(10)) {
             populateWorkbook(wb1);
-            saveTwice(wb1);
+            assertDoesNotThrow(() -> wb1.write(NULL_OUTPUT_STREAM));
+            assertDoesNotThrow(() -> wb1.write(NULL_OUTPUT_STREAM));
             try (Workbook wb2 = new XSSFWorkbook()) {
                 populateWorkbook(wb2);
-                saveTwice(wb2);
+                assertDoesNotThrow(() -> wb2.write(NULL_OUTPUT_STREAM));
+                assertDoesNotThrow(() -> wb2.write(NULL_OUTPUT_STREAM));
             }
         }
     }
@@ -405,18 +395,6 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
         }
     }
 
-    private static void saveTwice(Workbook wb) throws Exception {
-        for (int i = 0; i < 2; i++) {
-            try {
-                wb.write(NULL_OUTPUT_STREAM);
-            } catch (Exception e) {
-                throw new Exception("ERROR: failed on " + (i + 1)
-                        + "th time calling " + wb.getClass().getName()
-                        + ".write() with exception " + e.getMessage(), e);
-            }
-        }
-    }
-
     @Test
     void closeDoesNotModifyWorkbook() throws IOException {
         final String filename = "SampleSS.xlsx";
@@ -460,10 +438,10 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
             char[] useless = new char[32767];
             Arrays.fill(useless, ' ');
 
-            for (int row = 0; row < 1; row++) {
+            for (int row = 0; row < 10; row++) {
                 Row r = s.createRow(row);
                 for (int col = 0; col < 10; col++) {
-                    char[] prefix = Integer.toHexString(row * 1000 + col).toCharArray();
+                    char[] prefix = Integer.toHexString(row * 10 + col).toCharArray();
                     Arrays.fill(useless, 0, 10, ' ');
                     System.arraycopy(prefix, 0, useless, 0, prefix.length);
                     String ul = new String(useless);
@@ -528,8 +506,8 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
         }
     }
 
+    @Override
     @Disabled("not implemented")
-    @Test
-    void changeSheetNameWithSharedFormulas() {
+    protected void changeSheetNameWithSharedFormulas() {
     }
 }

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFBugs.java

@@ -100,7 +100,6 @@ import org.apache.poi.ss.util.CellRangeAddress;
 import org.apache.poi.ss.util.CellReference;
 import org.apache.poi.ss.util.CellUtil;
 import org.apache.poi.util.LocaleUtil;
-import org.apache.commons.io.output.NullOutputStream;
 import org.apache.poi.util.TempFile;
 import org.apache.poi.util.XMLHelper;
 import org.apache.poi.xssf.SXSSFITestDataProvider;
@@ -117,7 +116,14 @@ import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.CsvSource;
 import org.junit.jupiter.params.provider.EnumSource;
 import org.junit.jupiter.params.provider.ValueSource;
-import org.openxmlformats.schemas.spreadsheetml.x2006.main.*;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTCalcCell;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTCols;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDefinedName;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTDefinedNames;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTMergeCell;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTMergeCells;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTWorksheet;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.STCellFormulaType;
 import org.openxmlformats.schemas.spreadsheetml.x2006.main.impl.CTFontImpl;
 import org.xml.sax.InputSource;
 import org.xml.sax.SAXParseException;
@@ -2714,6 +2720,7 @@ public final class TestXSSFBugs extends BaseTestBugzillaIssues {
             CellStyle style = wb.createCellStyle();
             style.setRotation((short) -90);
             cell.setCellStyle(style);
+            assertEquals(180, style.getRotation());
 
             XSSFTestDataSamples.writeOut(wb, fileName);
         }

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFFont.java

@@ -259,11 +259,11 @@ public final class TestXSSFFont extends BaseTestFont{
 
         xssfFont.setUnderline(Font.U_DOUBLE);
         assertEquals(ctFont.sizeOfUArray(),1);
-        assertEquals(STUnderlineValues.DOUBLE,ctFont.getUArray(0).getVal());
+        assertSame(STUnderlineValues.DOUBLE,ctFont.getUArray(0).getVal());
 
         xssfFont.setUnderline(FontUnderline.DOUBLE_ACCOUNTING);
         assertEquals(ctFont.sizeOfUArray(),1);
-        assertEquals(STUnderlineValues.DOUBLE_ACCOUNTING,ctFont.getUArray(0).getVal());
+        assertSame(STUnderlineValues.DOUBLE_ACCOUNTING,ctFont.getUArray(0).getVal());
     }
 
     @Test
@@ -342,7 +342,7 @@ public final class TestXSSFFont extends BaseTestFont{
         assertEquals(FontScheme.MAJOR,font.getScheme());
 
         font.setScheme(FontScheme.NONE);
-        assertEquals(STFontScheme.NONE,ctFont.getSchemeArray(0).getVal());
+        assertSame(STFontScheme.NONE,ctFont.getSchemeArray(0).getVal());
     }
 
     @Test
@@ -356,17 +356,15 @@ public final class TestXSSFFont extends BaseTestFont{
         assertEquals(Font.SS_NONE,font.getTypeOffset());
 
         font.setTypeOffset(XSSFFont.SS_SUPER);
-        assertEquals(STVerticalAlignRun.SUPERSCRIPT,ctFont.getVertAlignArray(0).getVal());
+        assertSame(STVerticalAlignRun.SUPERSCRIPT,ctFont.getVertAlignArray(0).getVal());
     }
 
     // store test from TestSheetUtil here as it uses XSSF
     @Test
     void testCanComputeWidthXSSF() throws IOException {
         try (Workbook wb = new XSSFWorkbook()) {
-
             // cannot check on result because on some machines we get back false here!
-            SheetUtil.canComputeColumnWidth(wb.getFontAt(0));
-
+            assertDoesNotThrow(() -> SheetUtil.canComputeColumnWidth(wb.getFontAt(0)));
         }
     }
 
@@ -377,7 +375,7 @@ public final class TestXSSFFont extends BaseTestFont{
         font.setFontName("some non existing font name");
 
         // Even with invalid fonts we still get back useful data most of the time...
-        SheetUtil.canComputeColumnWidth(font);
+        assertDoesNotThrow(() -> SheetUtil.canComputeColumnWidth(font));
     }
 
     /**

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFSheet.java

@@ -252,14 +252,14 @@ public final class TestXSSFSheet extends BaseTestXSheet {
 
         sheet.createFreezePane(2, 4);
         assertEquals(2.0, ctWorksheet.getSheetViews().getSheetViewArray(0).getPane().getXSplit(), 0.0);
-        assertEquals(STPane.BOTTOM_RIGHT, ctWorksheet.getSheetViews().getSheetViewArray(0).getPane().getActivePane());
+        assertSame(STPane.BOTTOM_RIGHT, ctWorksheet.getSheetViews().getSheetViewArray(0).getPane().getActivePane());
         sheet.createFreezePane(3, 6, 10, 10);
         assertEquals(3.0, ctWorksheet.getSheetViews().getSheetViewArray(0).getPane().getXSplit(), 0.0);
         //    assertEquals(10, sheet.getTopRow());
         //    assertEquals(10, sheet.getLeftCol());
         sheet.createSplitPane(4, 8, 12, 12, 1);
         assertEquals(8.0, ctWorksheet.getSheetViews().getSheetViewArray(0).getPane().getYSplit(), 0.0);
-        assertEquals(STPane.BOTTOM_RIGHT, ctWorksheet.getSheetViews().getSheetViewArray(0).getPane().getActivePane());
+        assertSame(STPane.BOTTOM_RIGHT, ctWorksheet.getSheetViews().getSheetViewArray(0).getPane().getActivePane());
 
         workbook.close();
     }
@@ -1152,7 +1152,7 @@ public final class TestXSSFSheet extends BaseTestXSheet {
         CTCalcPr calcPr = wb1.getCTWorkbook().addNewCalcPr();
         calcPr.setCalcMode(STCalcMode.MANUAL);
         sheet.setForceFormulaRecalculation(true);
-        assertEquals(STCalcMode.AUTO, calcPr.getCalcMode());
+        assertSame(STCalcMode.AUTO, calcPr.getCalcMode());
 
         // Check
         sheet.setForceFormulaRecalculation(false);
@@ -1422,350 +1422,337 @@ public final class TestXSSFSheet extends BaseTestXSheet {
         wb.close();
     }
 
-    private void testCopyOneRow(String copyRowsTestWorkbook) throws IOException {
-        final double FLOAT_PRECISION = 1e-9;
-        final XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook(copyRowsTestWorkbook);
-        final XSSFSheet sheet = wb.getSheetAt(0);
-        final CellCopyPolicy defaultCopyPolicy = new CellCopyPolicy();
-        sheet.copyRows(1, 1, 6, defaultCopyPolicy);
-
-        final Row srcRow = sheet.getRow(1);
-        final Row destRow = sheet.getRow(6);
-        int col = 0;
-        Cell cell;
-
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals("Source row ->", cell.getStringCellValue());
-
-        // Style
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals("Red", cell.getStringCellValue(), "[Style] B7 cell value");
-        assertEquals(CellUtil.getCell(srcRow, 1).getCellStyle(), cell.getCellStyle(), "[Style] B7 cell style");
-
-        // Blank
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals(CellType.BLANK, cell.getCellType(), "[Blank] C7 cell type");
-
-        // Error
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals(CellType.ERROR, cell.getCellType(), "[Error] D7 cell type");
-        final FormulaError error = FormulaError.forInt(cell.getErrorCellValue());
-        //FIXME: XSSFCell and HSSFCell expose different interfaces. getErrorCellString would be helpful here
-        assertEquals(FormulaError.NA, error, "[Error] D7 cell value");
-
-        // Date
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Date] E7 cell type");
-        final Date date = LocaleUtil.getLocaleCalendar(2000, Calendar.JANUARY, 1).getTime();
-        assertEquals(date, cell.getDateCellValue(), "[Date] E7 cell value");
-
-        // Boolean
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals(CellType.BOOLEAN, cell.getCellType(), "[Boolean] F7 cell type");
-        assertTrue(cell.getBooleanCellValue(), "[Boolean] F7 cell value");
-
-        // String
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals(CellType.STRING, cell.getCellType(), "[String] G7 cell type");
-        assertEquals("Hello", cell.getStringCellValue(), "[String] G7 cell value");
-
-        // Int
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Int] H7 cell type");
-        assertEquals(15, (int) cell.getNumericCellValue(), "[Int] H7 cell value");
-
-        // Float
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Float] I7 cell type");
-        assertEquals(12.5, cell.getNumericCellValue(), FLOAT_PRECISION, "[Float] I7 cell value");
-
-        // Cell Formula
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals("Sheet1!J7", new CellReference(cell).formatAsString());
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula] J7 cell type");
-        assertEquals("5+2", cell.getCellFormula(), "[Cell Formula] J7 cell formula");
-        //System.out.println("Cell formula evaluation currently unsupported");
-
-        // Cell Formula with Reference
-        // Formula row references should be adjusted by destRowNum-srcRowNum
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals("Sheet1!K7", new CellReference(cell).formatAsString());
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference] K7 cell type");
-        assertEquals("J7+H$2", cell.getCellFormula(), "[Cell Formula with Reference] K7 cell formula");
-
-        // Cell Formula with Reference spanning multiple rows
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference spanning multiple rows] L7 cell type");
-        assertEquals("G7&\" \"&G8", cell.getCellFormula(), "[Cell Formula with Reference spanning multiple rows] L7 cell formula");
-
-        // Cell Formula with Reference spanning multiple rows
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Area Reference] M7 cell type");
-        assertEquals("SUM(H7:I8)", cell.getCellFormula(), "[Cell Formula with Area Reference] M7 cell formula");
-
-        // Array Formula
-        cell = CellUtil.getCell(destRow, col++);
-        //System.out.println("Array formulas currently unsupported");
-        // FIXME: Array Formula set with Sheet.setArrayFormula() instead of cell.setFormula()
-        /*
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Array Formula] N7 cell type");
-        assertEquals("{SUM(H7:J7*{1,2,3})}", cell.getCellFormula(), "[Array Formula] N7 cell formula");
-        */
-
-        // Data Format
-        cell = CellUtil.getCell(destRow, col++);
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Data Format] O7 cell type");
-        assertEquals(100.20, cell.getNumericCellValue(), FLOAT_PRECISION, "[Data Format] O7 cell value");
-        //FIXME: currently fails
-        final String moneyFormat = "\"$\"#,##0.00_);[Red]\\(\"$\"#,##0.00\\)";
-        assertEquals(moneyFormat, cell.getCellStyle().getDataFormatString(), "[Data Format] O7 data format");
-
-        // Merged
-        cell = CellUtil.getCell(destRow, col);
-        assertEquals("Merged cells", cell.getStringCellValue(), "[Merged] P7:Q7 cell value");
-        assertTrue(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("P7:Q7")), "[Merged] P7:Q7 merged region");
-
-        // Merged across multiple rows
-        // Microsoft Excel 2013 does not copy a merged region unless all rows of
-        // the source merged region are selected
-        // POI's behavior should match this behavior
-        col += 2;
-        cell = CellUtil.getCell(destRow, col);
-        // Note: this behavior deviates from Microsoft Excel,
-        // which will not overwrite a cell in destination row if merged region extends beyond the copied row.
-        // The Excel way would require:
-        //assertEquals("[Merged across multiple rows] R7:S8 merged region", "Should NOT be overwritten", cell.getStringCellValue());
-        //assertFalse("[Merged across multiple rows] R7:S8 merged region",
-        //        sheet.getMergedRegions().contains(CellRangeAddress.valueOf("R7:S8")));
-        // As currently implemented, cell value is copied but merged region is not copied
-        assertEquals("Merged cells across multiple rows", cell.getStringCellValue(), "[Merged across multiple rows] R7:S8 cell value");
-        // shouldn't do 1-row merge
-        assertFalse(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("R7:S7")), "[Merged across multiple rows] R7:S7 merged region (one row)");
-        //shouldn't do 2-row merge
-        assertFalse(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("R7:S8")), "[Merged across multiple rows] R7:S8 merged region");
-
-        // Make sure other rows are blank (off-by-one errors)
-        assertNull(sheet.getRow(5));
-        assertNull(sheet.getRow(7));
-
-        wb.close();
-    }
-
-    private void testCopyMultipleRows(String copyRowsTestWorkbook) throws IOException {
-        final double FLOAT_PRECISION = 1e-9;
-        final XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook(copyRowsTestWorkbook);
-        final XSSFSheet sheet = wb.getSheetAt(0);
-        final CellCopyPolicy defaultCopyPolicy = new CellCopyPolicy();
-        sheet.copyRows(0, 3, 8, defaultCopyPolicy);
-
-        sheet.getRow(0);
-        final Row srcRow1 = sheet.getRow(1);
-        final Row srcRow2 = sheet.getRow(2);
-        final Row srcRow3 = sheet.getRow(3);
-        final Row destHeaderRow = sheet.getRow(8);
-        final Row destRow1 = sheet.getRow(9);
-        final Row destRow2 = sheet.getRow(10);
-        final Row destRow3 = sheet.getRow(11);
-        int col = 0;
-        Cell cell;
-
-        // Header row should be copied
-        assertNotNull(destHeaderRow);
-
-        // Data rows
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals("Source row ->", cell.getStringCellValue());
-
-        // Style
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals("Red", cell.getStringCellValue(), "[Style] B10 cell value");
-        assertEquals(CellUtil.getCell(srcRow1, 1).getCellStyle(), cell.getCellStyle(), "[Style] B10 cell style");
-
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals("Blue", cell.getStringCellValue(), "[Style] B11 cell value");
-        assertEquals(CellUtil.getCell(srcRow2, 1).getCellStyle(), cell.getCellStyle(), "[Style] B11 cell style");
-
-        // Blank
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals(CellType.BLANK, cell.getCellType(), "[Blank] C10 cell type");
-
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals(CellType.BLANK, cell.getCellType(), "[Blank] C11 cell type");
-
-        // Error
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        FormulaError error = FormulaError.forInt(cell.getErrorCellValue());
-        //FIXME: XSSFCell and HSSFCell expose different interfaces. getErrorCellString would be helpful here
-        assertEquals(CellType.ERROR, cell.getCellType(), "[Error] D10 cell type");
-        assertEquals(FormulaError.NA, error, "[Error] D10 cell value");
-
-        cell = CellUtil.getCell(destRow2, col);
-        error = FormulaError.forInt(cell.getErrorCellValue());
-        //FIXME: XSSFCell and HSSFCell expose different interfaces. getErrorCellString would be helpful here
-        assertEquals(CellType.ERROR, cell.getCellType(), "[Error] D11 cell type");
-        assertEquals(FormulaError.NAME, error, "[Error] D11 cell value");
-
-        // Date
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        Date date = LocaleUtil.getLocaleCalendar(2000, Calendar.JANUARY, 1).getTime();
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Date] E10 cell type");
-        assertEquals(date, cell.getDateCellValue(), "[Date] E10 cell value");
-
-        cell = CellUtil.getCell(destRow2, col);
-        date = LocaleUtil.getLocaleCalendar(2000, Calendar.JANUARY, 2).getTime();
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Date] E11 cell type");
-        assertEquals(date, cell.getDateCellValue(), "[Date] E11 cell value");
-
-        // Boolean
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals(CellType.BOOLEAN, cell.getCellType(), "[Boolean] F10 cell type");
-        assertTrue(cell.getBooleanCellValue(), "[Boolean] F10 cell value");
-
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals(CellType.BOOLEAN, cell.getCellType(), "[Boolean] F11 cell type");
-        assertFalse(cell.getBooleanCellValue(), "[Boolean] F11 cell value");
-
-        // String
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals(CellType.STRING, cell.getCellType(), "[String] G10 cell type");
-        assertEquals("Hello", cell.getStringCellValue(), "[String] G10 cell value");
-
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals(CellType.STRING, cell.getCellType(), "[String] G11 cell type");
-        assertEquals("World", cell.getStringCellValue(), "[String] G11 cell value");
-
-        // Int
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Int] H10 cell type");
-        assertEquals(15, (int) cell.getNumericCellValue(), "[Int] H10 cell value");
-
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Int] H11 cell type");
-        assertEquals(42, (int) cell.getNumericCellValue(), "[Int] H11 cell value");
-
-        // Float
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Float] I10 cell type");
-        assertEquals(12.5, cell.getNumericCellValue(), FLOAT_PRECISION, "[Float] I10 cell value");
-
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Float] I11 cell type");
-        assertEquals(5.5, cell.getNumericCellValue(), FLOAT_PRECISION, "[Float] I11 cell value");
-
-        // Cell Formula
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula] J10 cell type");
-        assertEquals("5+2", cell.getCellFormula(), "[Cell Formula] J10 cell formula");
-
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula] J11 cell type");
-        assertEquals("6+18", cell.getCellFormula(), "[Cell Formula] J11 cell formula");
-
-        // Cell Formula with Reference
-        col++;
-        // Formula row references should be adjusted by destRowNum-srcRowNum
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference] K10 cell type");
-        assertEquals("J10+H$2", cell.getCellFormula(), "[Cell Formula with Reference] K10 cell formula");
-
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference] K11 cell type");
-        assertEquals("J11+H$2", cell.getCellFormula(), "[Cell Formula with Reference] K11 cell formula");
-
-        // Cell Formula with Reference spanning multiple rows
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference spanning multiple rows] L10 cell type");
-        assertEquals("G10&\" \"&G11", cell.getCellFormula(), "[Cell Formula with Reference spanning multiple rows] L10 cell formula");
-
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference spanning multiple rows] L11 cell type");
-        assertEquals("G11&\" \"&G12", cell.getCellFormula(), "[Cell Formula with Reference spanning multiple rows] L11 cell formula");
-
-        // Cell Formula with Area Reference
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Area Reference] M10 cell type");
-        assertEquals("SUM(H10:I11)", cell.getCellFormula(), "[Cell Formula with Area Reference] M10 cell formula");
-
-        cell = CellUtil.getCell(destRow2, col);
-        // Also acceptable: SUM($H10:I$3), but this AreaReference isn't in ascending order
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Area Reference] M11 cell type");
-        assertEquals("SUM($H$3:I10)", cell.getCellFormula(), "[Cell Formula with Area Reference] M11 cell formula");
-
-        // Array Formula
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        // System.out.println("Array formulas currently unsupported");
-    /*
-        // FIXME: Array Formula set with Sheet.setArrayFormula() instead of cell.setFormula()
-        assertEquals(CellType.FORMULA, cell.getCellType(), "[Array Formula] N10 cell type");
-        assertEquals("{SUM(H10:J10*{1,2,3})}", cell.getCellFormula(), "[Array Formula] N10 cell formula");
-
-        cell = CellUtil.getCell(destRow2, col);
-        // FIXME: Array Formula set with Sheet.setArrayFormula() instead of cell.setFormula()
-        assertEquals(CellType.FORMULA, cell.getCellType(). "[Array Formula] N11 cell type");
-        assertEquals("{SUM(H11:J11*{1,2,3})}", cell.getCellFormula(). "[Array Formula] N11 cell formula");
-     */
-
-        // Data Format
-        col++;
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals(CellType.NUMERIC, cell.getCellType(), "[Data Format] O10 cell type");
-        assertEquals(100.20, cell.getNumericCellValue(), FLOAT_PRECISION, "[Data Format] O10 cell value");
-        final String moneyFormat = "\"$\"#,##0.00_);[Red]\\(\"$\"#,##0.00\\)";
-        assertEquals(moneyFormat, cell.getCellStyle().getDataFormatString(), "[Data Format] O10 cell data format");
-
-        // Merged
-        col++;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals("Merged cells", cell.getStringCellValue(), "[Merged] P10:Q10 cell value");
-        assertTrue(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("P10:Q10")), "[Merged] P10:Q10 merged region");
-
-        cell = CellUtil.getCell(destRow2, col);
-        assertEquals("Merged cells", cell.getStringCellValue(), "[Merged] P11:Q11 cell value");
-        assertTrue(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("P11:Q11")), "[Merged] P11:Q11 merged region");
-
-        // Should Q10/Q11 be checked?
-
-        // Merged across multiple rows
-        // Microsoft Excel 2013 does not copy a merged region unless all rows of
-        // the source merged region are selected
-        // POI's behavior should match this behavior
-        col += 2;
-        cell = CellUtil.getCell(destRow1, col);
-        assertEquals("Merged cells across multiple rows", cell.getStringCellValue(), "[Merged across multiple rows] R10:S11 cell value");
-        assertTrue(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("R10:S11")), "[Merged across multiple rows] R10:S11 merged region");
-
-        // Row 3 (zero-based) was empty, so Row 11 (zero-based) should be empty too.
-        if (srcRow3 == null) {
-            assertNull(destRow3, "Row 3 was empty, so Row 11 should be empty");
-        }
-
-        // Make sure other rows are blank (off-by-one errors)
-        assertNull(sheet.getRow(7), "Off-by-one lower edge case"); //one row above destHeaderRow
-        assertNull(sheet.getRow(12), "Off-by-one upper edge case"); //one row below destRow3
-
-        wb.close();
-    }
-
     @Test
     void testCopyOneRow() throws IOException {
-        testCopyOneRow("XSSFSheet.copyRows.xlsx");
+        final double FLOAT_PRECISION = 1e-9;
+        try (final XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("XSSFSheet.copyRows.xlsx")) {
+            final XSSFSheet sheet = wb.getSheetAt(0);
+            final CellCopyPolicy defaultCopyPolicy = new CellCopyPolicy();
+            sheet.copyRows(1, 1, 6, defaultCopyPolicy);
+
+            final Row srcRow = sheet.getRow(1);
+            final Row destRow = sheet.getRow(6);
+            int col = 0;
+            Cell cell;
+
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals("Source row ->", cell.getStringCellValue());
+
+            // Style
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals("Red", cell.getStringCellValue(), "[Style] B7 cell value");
+            assertEquals(CellUtil.getCell(srcRow, 1).getCellStyle(), cell.getCellStyle(), "[Style] B7 cell style");
+
+            // Blank
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals(CellType.BLANK, cell.getCellType(), "[Blank] C7 cell type");
+
+            // Error
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals(CellType.ERROR, cell.getCellType(), "[Error] D7 cell type");
+            final FormulaError error = FormulaError.forInt(cell.getErrorCellValue());
+            //FIXME: XSSFCell and HSSFCell expose different interfaces. getErrorCellString would be helpful here
+            assertEquals(FormulaError.NA, error, "[Error] D7 cell value");
+
+            // Date
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Date] E7 cell type");
+            final Date date = LocaleUtil.getLocaleCalendar(2000, Calendar.JANUARY, 1).getTime();
+            assertEquals(date, cell.getDateCellValue(), "[Date] E7 cell value");
+
+            // Boolean
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals(CellType.BOOLEAN, cell.getCellType(), "[Boolean] F7 cell type");
+            assertTrue(cell.getBooleanCellValue(), "[Boolean] F7 cell value");
+
+            // String
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals(CellType.STRING, cell.getCellType(), "[String] G7 cell type");
+            assertEquals("Hello", cell.getStringCellValue(), "[String] G7 cell value");
+
+            // Int
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Int] H7 cell type");
+            assertEquals(15, (int) cell.getNumericCellValue(), "[Int] H7 cell value");
+
+            // Float
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Float] I7 cell type");
+            assertEquals(12.5, cell.getNumericCellValue(), FLOAT_PRECISION, "[Float] I7 cell value");
+
+            // Cell Formula
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals("Sheet1!J7", new CellReference(cell).formatAsString());
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula] J7 cell type");
+            assertEquals("5+2", cell.getCellFormula(), "[Cell Formula] J7 cell formula");
+            //System.out.println("Cell formula evaluation currently unsupported");
+
+            // Cell Formula with Reference
+            // Formula row references should be adjusted by destRowNum-srcRowNum
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals("Sheet1!K7", new CellReference(cell).formatAsString());
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference] K7 cell type");
+            assertEquals("J7+H$2", cell.getCellFormula(), "[Cell Formula with Reference] K7 cell formula");
+
+            // Cell Formula with Reference spanning multiple rows
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference spanning multiple rows] L7 cell type");
+            assertEquals("G7&\" \"&G8", cell.getCellFormula(), "[Cell Formula with Reference spanning multiple rows] L7 cell formula");
+
+            // Cell Formula with Reference spanning multiple rows
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Area Reference] M7 cell type");
+            assertEquals("SUM(H7:I8)", cell.getCellFormula(), "[Cell Formula with Area Reference] M7 cell formula");
+
+            // Array Formula
+            col++;
+            // cell = CellUtil.getCell(destRow, col++);
+            // Array formulas currently unsupported"
+            // FIXME: Array Formula set with Sheet.setArrayFormula() instead of cell.setFormula()
+            // assertEquals(CellType.FORMULA, cell.getCellType(), "[Array Formula] N7 cell type");
+            // assertEquals("{SUM(H7:J7*{1,2,3})}", cell.getCellFormula(), "[Array Formula] N7 cell formula");
+
+            // Data Format
+            cell = CellUtil.getCell(destRow, col++);
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Data Format] O7 cell type");
+            assertEquals(100.20, cell.getNumericCellValue(), FLOAT_PRECISION, "[Data Format] O7 cell value");
+            //FIXME: currently fails
+            final String moneyFormat = "\"$\"#,##0.00_);[Red]\\(\"$\"#,##0.00\\)";
+            assertEquals(moneyFormat, cell.getCellStyle().getDataFormatString(), "[Data Format] O7 data format");
+
+            // Merged
+            cell = CellUtil.getCell(destRow, col);
+            assertEquals("Merged cells", cell.getStringCellValue(), "[Merged] P7:Q7 cell value");
+            assertTrue(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("P7:Q7")), "[Merged] P7:Q7 merged region");
+
+            // Merged across multiple rows
+            // Microsoft Excel 2013 does not copy a merged region unless all rows of
+            // the source merged region are selected
+            // POI's behavior should match this behavior
+            col += 2;
+            cell = CellUtil.getCell(destRow, col);
+            // Note: this behavior deviates from Microsoft Excel,
+            // which will not overwrite a cell in destination row if merged region extends beyond the copied row.
+            // The Excel way would require:
+            //assertEquals("[Merged across multiple rows] R7:S8 merged region", "Should NOT be overwritten", cell.getStringCellValue());
+            //assertFalse("[Merged across multiple rows] R7:S8 merged region",
+            //        sheet.getMergedRegions().contains(CellRangeAddress.valueOf("R7:S8")));
+            // As currently implemented, cell value is copied but merged region is not copied
+            assertEquals("Merged cells across multiple rows", cell.getStringCellValue(), "[Merged across multiple rows] R7:S8 cell value");
+            // shouldn't do 1-row merge
+            assertFalse(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("R7:S7")), "[Merged across multiple rows] R7:S7 merged region (one row)");
+            //shouldn't do 2-row merge
+            assertFalse(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("R7:S8")), "[Merged across multiple rows] R7:S8 merged region");
+
+            // Make sure other rows are blank (off-by-one errors)
+            assertNull(sheet.getRow(5));
+            assertNull(sheet.getRow(7));
+        }
     }
 
     @Test
     void testCopyMultipleRows() throws IOException {
-        testCopyMultipleRows("XSSFSheet.copyRows.xlsx");
+        final double FLOAT_PRECISION = 1e-9;
+        try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("XSSFSheet.copyRows.xlsx")) {
+            final XSSFSheet sheet = wb.getSheetAt(0);
+            final CellCopyPolicy defaultCopyPolicy = new CellCopyPolicy();
+            sheet.copyRows(0, 3, 8, defaultCopyPolicy);
+
+            sheet.getRow(0);
+            final Row srcRow1 = sheet.getRow(1);
+            final Row srcRow2 = sheet.getRow(2);
+            final Row srcRow3 = sheet.getRow(3);
+            final Row destHeaderRow = sheet.getRow(8);
+            final Row destRow1 = sheet.getRow(9);
+            final Row destRow2 = sheet.getRow(10);
+            final Row destRow3 = sheet.getRow(11);
+            int col = 0;
+            Cell cell;
+
+            // Header row should be copied
+            assertNotNull(destHeaderRow);
+
+            // Data rows
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals("Source row ->", cell.getStringCellValue());
+
+            // Style
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals("Red", cell.getStringCellValue(), "[Style] B10 cell value");
+            assertEquals(CellUtil.getCell(srcRow1, 1).getCellStyle(), cell.getCellStyle(), "[Style] B10 cell style");
+
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals("Blue", cell.getStringCellValue(), "[Style] B11 cell value");
+            assertEquals(CellUtil.getCell(srcRow2, 1).getCellStyle(), cell.getCellStyle(), "[Style] B11 cell style");
+
+            // Blank
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals(CellType.BLANK, cell.getCellType(), "[Blank] C10 cell type");
+
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals(CellType.BLANK, cell.getCellType(), "[Blank] C11 cell type");
+
+            // Error
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            FormulaError error = FormulaError.forInt(cell.getErrorCellValue());
+            //FIXME: XSSFCell and HSSFCell expose different interfaces. getErrorCellString would be helpful here
+            assertEquals(CellType.ERROR, cell.getCellType(), "[Error] D10 cell type");
+            assertEquals(FormulaError.NA, error, "[Error] D10 cell value");
+
+            cell = CellUtil.getCell(destRow2, col);
+            error = FormulaError.forInt(cell.getErrorCellValue());
+            //FIXME: XSSFCell and HSSFCell expose different interfaces. getErrorCellString would be helpful here
+            assertEquals(CellType.ERROR, cell.getCellType(), "[Error] D11 cell type");
+            assertEquals(FormulaError.NAME, error, "[Error] D11 cell value");
+
+            // Date
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            Date date = LocaleUtil.getLocaleCalendar(2000, Calendar.JANUARY, 1).getTime();
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Date] E10 cell type");
+            assertEquals(date, cell.getDateCellValue(), "[Date] E10 cell value");
+
+            cell = CellUtil.getCell(destRow2, col);
+            date = LocaleUtil.getLocaleCalendar(2000, Calendar.JANUARY, 2).getTime();
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Date] E11 cell type");
+            assertEquals(date, cell.getDateCellValue(), "[Date] E11 cell value");
+
+            // Boolean
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals(CellType.BOOLEAN, cell.getCellType(), "[Boolean] F10 cell type");
+            assertTrue(cell.getBooleanCellValue(), "[Boolean] F10 cell value");
+
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals(CellType.BOOLEAN, cell.getCellType(), "[Boolean] F11 cell type");
+            assertFalse(cell.getBooleanCellValue(), "[Boolean] F11 cell value");
+
+            // String
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals(CellType.STRING, cell.getCellType(), "[String] G10 cell type");
+            assertEquals("Hello", cell.getStringCellValue(), "[String] G10 cell value");
+
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals(CellType.STRING, cell.getCellType(), "[String] G11 cell type");
+            assertEquals("World", cell.getStringCellValue(), "[String] G11 cell value");
+
+            // Int
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Int] H10 cell type");
+            assertEquals(15, (int) cell.getNumericCellValue(), "[Int] H10 cell value");
+
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Int] H11 cell type");
+            assertEquals(42, (int) cell.getNumericCellValue(), "[Int] H11 cell value");
+
+            // Float
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Float] I10 cell type");
+            assertEquals(12.5, cell.getNumericCellValue(), FLOAT_PRECISION, "[Float] I10 cell value");
+
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Float] I11 cell type");
+            assertEquals(5.5, cell.getNumericCellValue(), FLOAT_PRECISION, "[Float] I11 cell value");
+
+            // Cell Formula
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula] J10 cell type");
+            assertEquals("5+2", cell.getCellFormula(), "[Cell Formula] J10 cell formula");
+
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula] J11 cell type");
+            assertEquals("6+18", cell.getCellFormula(), "[Cell Formula] J11 cell formula");
+
+            // Cell Formula with Reference
+            col++;
+            // Formula row references should be adjusted by destRowNum-srcRowNum
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference] K10 cell type");
+            assertEquals("J10+H$2", cell.getCellFormula(), "[Cell Formula with Reference] K10 cell formula");
+
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference] K11 cell type");
+            assertEquals("J11+H$2", cell.getCellFormula(), "[Cell Formula with Reference] K11 cell formula");
+
+            // Cell Formula with Reference spanning multiple rows
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference spanning multiple rows] L10 cell type");
+            assertEquals("G10&\" \"&G11", cell.getCellFormula(), "[Cell Formula with Reference spanning multiple rows] L10 cell formula");
+
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Reference spanning multiple rows] L11 cell type");
+            assertEquals("G11&\" \"&G12", cell.getCellFormula(), "[Cell Formula with Reference spanning multiple rows] L11 cell formula");
+
+            // Cell Formula with Area Reference
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Area Reference] M10 cell type");
+            assertEquals("SUM(H10:I11)", cell.getCellFormula(), "[Cell Formula with Area Reference] M10 cell formula");
+
+            cell = CellUtil.getCell(destRow2, col);
+            // Also acceptable: SUM($H10:I$3), but this AreaReference isn't in ascending order
+            assertEquals(CellType.FORMULA, cell.getCellType(), "[Cell Formula with Area Reference] M11 cell type");
+            assertEquals("SUM($H$3:I10)", cell.getCellFormula(), "[Cell Formula with Area Reference] M11 cell formula");
+
+            // Array Formula
+            col++;
+            // cell = CellUtil.getCell(destRow1, col);
+            // Array formulas currently unsupported
+            // FIXME: Array Formula set with Sheet.setArrayFormula() instead of cell.setFormula()
+            // assertEquals(CellType.FORMULA, cell.getCellType(), "[Array Formula] N10 cell type");
+            // assertEquals("{SUM(H10:J10*{1,2,3})}", cell.getCellFormula(), "[Array Formula] N10 cell formula");
+
+            // cell = CellUtil.getCell(destRow2, col);
+            // FIXME: Array Formula set with Sheet.setArrayFormula() instead of cell.setFormula()
+            // assertEquals(CellType.FORMULA, cell.getCellType(). "[Array Formula] N11 cell type");
+            // assertEquals("{SUM(H11:J11*{1,2,3})}", cell.getCellFormula(). "[Array Formula] N11 cell formula");
+
+            // Data Format
+            col++;
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals(CellType.NUMERIC, cell.getCellType(), "[Data Format] O10 cell type");
+            assertEquals(100.20, cell.getNumericCellValue(), FLOAT_PRECISION, "[Data Format] O10 cell value");
+            final String moneyFormat = "\"$\"#,##0.00_);[Red]\\(\"$\"#,##0.00\\)";
+            assertEquals(moneyFormat, cell.getCellStyle().getDataFormatString(), "[Data Format] O10 cell data format");
+
+            // Merged
+            col++;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals("Merged cells", cell.getStringCellValue(), "[Merged] P10:Q10 cell value");
+            assertTrue(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("P10:Q10")), "[Merged] P10:Q10 merged region");
+
+            cell = CellUtil.getCell(destRow2, col);
+            assertEquals("Merged cells", cell.getStringCellValue(), "[Merged] P11:Q11 cell value");
+            assertTrue(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("P11:Q11")), "[Merged] P11:Q11 merged region");
+
+            // Should Q10/Q11 be checked?
+
+            // Merged across multiple rows
+            // Microsoft Excel 2013 does not copy a merged region unless all rows of
+            // the source merged region are selected
+            // POI's behavior should match this behavior
+            col += 2;
+            cell = CellUtil.getCell(destRow1, col);
+            assertEquals("Merged cells across multiple rows", cell.getStringCellValue(), "[Merged across multiple rows] R10:S11 cell value");
+            assertTrue(sheet.getMergedRegions().contains(CellRangeAddress.valueOf("R10:S11")), "[Merged across multiple rows] R10:S11 merged region");
+
+            // Row 3 (zero-based) was empty, so Row 11 (zero-based) should be empty too.
+            if (srcRow3 == null) {
+                assertNull(destRow3, "Row 3 was empty, so Row 11 should be empty");
+            }
+
+            // Make sure other rows are blank (off-by-one errors)
+            assertNull(sheet.getRow(7), "Off-by-one lower edge case"); //one row above destHeaderRow
+            assertNull(sheet.getRow(12), "Off-by-one upper edge case"); //one row below destRow3
+        }
     }
 
     @Test
@@ -1998,26 +1985,34 @@ public final class TestXSSFSheet extends BaseTestXSheet {
 
     @Test
     public void bug65120() throws IOException {
-        XSSFWorkbook wb = new XSSFWorkbook();
-        CreationHelper creationHelper = wb.getCreationHelper();
-
-        Sheet sheet1 = wb.createSheet();
-        Cell cell1 = sheet1.createRow(0).createCell(0);
-        Comment comment1 = sheet1.createDrawingPatriarch().createCellComment(creationHelper.createClientAnchor());
-        cell1.setCellComment(comment1);
-
-        Sheet sheet2 = wb.createSheet();
-        Cell cell2 = sheet2.createRow(0).createCell(0);
-        Comment comment2 = sheet2.createDrawingPatriarch().createCellComment(creationHelper.createClientAnchor());
-        cell2.setCellComment(comment2);
-
-        wb.removeSheetAt(0);
-
-        Sheet sheet3 = wb.createSheet();
-        Cell cell3 = sheet3.createRow(0).createCell(0);
-        Comment comment3 = sheet3.createDrawingPatriarch().createCellComment(creationHelper.createClientAnchor());
-        cell3.setCellComment(comment3);
-
-        wb.close();
+        try (XSSFWorkbook wb = new XSSFWorkbook()) {
+            XSSFCreationHelper creationHelper = wb.getCreationHelper();
+
+            XSSFSheet sheet1 = wb.createSheet();
+            Cell cell1 = sheet1.createRow(0).createCell(0);
+            XSSFDrawing dwg1 = sheet1.createDrawingPatriarch();
+            XSSFComment comment1 = dwg1.createCellComment(creationHelper.createClientAnchor());
+            cell1.setCellComment(comment1);
+            XSSFVMLDrawing vml0 = sheet1.getVMLDrawing(false);
+            assertEquals("/xl/drawings/vmlDrawing0.vml", vml0.getPackagePart().getPartName().getName());
+
+            XSSFSheet sheet2 = wb.createSheet();
+            Cell cell2 = sheet2.createRow(0).createCell(0);
+            XSSFDrawing dwg2 = sheet2.createDrawingPatriarch();
+            Comment comment2 = dwg2.createCellComment(creationHelper.createClientAnchor());
+            cell2.setCellComment(comment2);
+            XSSFVMLDrawing vml1 = sheet2.getVMLDrawing(false);
+            assertEquals("/xl/drawings/vmlDrawing1.vml", vml1.getPackagePart().getPartName().getName());
+
+            wb.removeSheetAt(0);
+
+            XSSFSheet sheet3 = wb.createSheet();
+            Cell cell3 = sheet3.createRow(0).createCell(0);
+            XSSFDrawing dwg3 = sheet3.createDrawingPatriarch();
+            Comment comment3 = dwg3.createCellComment(creationHelper.createClientAnchor());
+            cell3.setCellComment(comment3);
+            XSSFVMLDrawing vml2 = sheet3.getVMLDrawing(false);
+            assertEquals("/xl/drawings/vmlDrawing2.vml", vml2.getPackagePart().getPartName().getName());
+        }
     }
 }

poi-scratchpad/src/main/java/org/apache/poi/hemf/record/emfplus/HemfPlusBrush.java

@@ -399,18 +399,17 @@ public class HemfPlusBrush {
         }
 
         public byte[] getRawData(List<? extends EmfPlusObjectData> continuedObjectData) {
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-            try {
+            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
                 bos.write(getBrushBytes());
                 if (continuedObjectData != null) {
                     for (EmfPlusObjectData od : continuedObjectData) {
                         bos.write(((EmfPlusBrush)od).getBrushBytes());
                     }
                 }
+                return bos.toByteArray();
             } catch (IOException e) {
                 throw new RuntimeException(e);
             }
-            return bos.toByteArray();
         }
 
 

poi-scratchpad/src/main/java/org/apache/poi/hemf/record/emfplus/HemfPlusImage.java

@@ -445,18 +445,17 @@ public class HemfPlusImage {
         }
 
         public byte[] getRawData(List<? extends EmfPlusObjectData> continuedObjectData) {
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-            try {
+            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
                 bos.write(getImageData());
                 if (continuedObjectData != null) {
                     for (EmfPlusObjectData od : continuedObjectData) {
                         bos.write(((EmfPlusImage)od).getImageData());
                     }
                 }
+                return bos.toByteArray();
             } catch (IOException e) {
                 throw new RuntimeException(e);
             }
-            return bos.toByteArray();
         }
 
         @Override

poi-scratchpad/src/main/java/org/apache/poi/hemf/usermodel/HemfEmbeddedIterator.java

@@ -35,6 +35,7 @@ import org.apache.poi.hemf.record.emf.HemfComment.EmfCommentDataMultiformats;
 import org.apache.poi.hemf.record.emf.HemfComment.EmfCommentDataPlus;
 import org.apache.poi.hemf.record.emf.HemfComment.EmfCommentDataWMF;
 import org.apache.poi.hemf.record.emf.HemfRecord;
+import org.apache.poi.hemf.record.emfplus.HemfPlusImage;
 import org.apache.poi.hemf.record.emfplus.HemfPlusImage.EmfPlusBitmapDataType;
 import org.apache.poi.hemf.record.emfplus.HemfPlusImage.EmfPlusImage;
 import org.apache.poi.hemf.record.emfplus.HemfPlusObject.EmfPlusObject;
@@ -63,6 +64,10 @@ public class HemfEmbeddedIterator implements Iterator<HwmfEmbedded> {
 
     @Override
     public boolean hasNext() {
+        return moveNext();
+    }
+
+    private boolean moveNext() {
         if (iterStack.isEmpty()) {
             return false;
         }
@@ -290,36 +295,33 @@ public class HemfEmbeddedIterator implements Iterator<HwmfEmbedded> {
 
         final int objectId = epo.getObjectId();
 
-        HwmfEmbedded emb = new HwmfEmbedded();
-
-        EmfPlusImage img = epo.getObjectData();
-        assert(img.getImageDataType() != null);
+        final HwmfEmbedded emb = new HwmfEmbedded();
 
-        int totalSize = epo.getTotalObjectSize();
+        // totalSize is only set, if there are multiple chunks
+        final int totalSize = epo.getTotalObjectSize() == 0
+            ? ((EmfPlusImage)epo.getObjectData()).getImageData().length
+            : epo.getTotalObjectSize();
         IOUtils.safelyAllocateCheck(totalSize, MAX_RECORD_LENGTH);
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(epo.getTotalObjectSize());
-        try {
-            for (;;) {
+        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(totalSize)) {
+            boolean hasNext = false;
+            do {
+                EmfPlusImage img = epo.getObjectData();
+                assert(img.getImageDataType() != null);
+                assert(!hasNext || img.getImageDataType() == HemfPlusImage.EmfPlusImageDataType.CONTINUED);
                 bos.write(img.getImageData());
-
                 current = null;
-                //noinspection ConstantConditions
-                if (hasNext() &&
+                hasNext = moveNext() &&
                     (current instanceof EmfPlusObject) &&
                     ((epo = (EmfPlusObject) current).getObjectId() == objectId) &&
-                    bos.size() < totalSize-16
-                ) {
-                    img = epo.getObjectData();
-                } else {
-                    return emb;
-                }
-            }
+                    bos.size() < totalSize-16;
+            } while (hasNext);
+
+            emb.setData(bos.toByteArray());
+            return emb;
         } catch (IOException ignored) {
             // UnsynchronizedByteArrayOutputStream doesn't throw IOException
             return null;
-        } finally {
-            emb.setData(bos.toByteArray());
         }
     }
 }

poi-scratchpad/src/main/java/org/apache/poi/hslf/blip/PICT.java

@@ -70,9 +70,8 @@ public final class PICT extends Metafile {
     @Override
     public byte[] getData(){
         byte[] rawdata = getRawData();
-        try {
+        try (UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream()) {
             byte[] macheader = new byte[512];
-            UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
             out.write(macheader);
             int pos = CHECKSUM_SIZE*getUIDInstanceCount();
             byte[] pict = read(rawdata, pos);
@@ -93,30 +92,33 @@ public final class PICT extends Metafile {
             throw new EOFException();
         }
         byte[] chunk = new byte[4096];
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream(header.getWmfSize());
-        try (InflaterInputStream inflater = new InflaterInputStream(bis)) {
-            int count;
-            while ((count = inflater.read(chunk)) >= 0) {
-                out.write(chunk, 0, count);
-                // PICT zip-stream can be erroneous, so we clear the array to determine
-                // the maximum of read bytes, after the inflater crashed
-                bytefill(chunk, (byte) 0);
-            }
-        } catch (Exception e) {
-            int lastLen;
-            for (lastLen = chunk.length - 1; lastLen >= 0 && chunk[lastLen] == 0; lastLen--) ;
-            if (++lastLen > 0) {
-                if (header.getWmfSize() > out.size()) {
-                    // sometimes the wmfsize is smaller than the amount of already successfully read bytes
-                    // in this case we take the lastLen as-is, otherwise we truncate it to the given size
-                    lastLen = Math.min(lastLen, header.getWmfSize() - out.size());
+        try (UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream(header.getWmfSize())) {
+            try (InflaterInputStream inflater = new InflaterInputStream(bis)) {
+                int count;
+                while ((count = inflater.read(chunk)) >= 0) {
+                    out.write(chunk, 0, count);
+                    // PICT zip-stream can be erroneous, so we clear the array to determine
+                    // the maximum of read bytes, after the inflater crashed
+                    bytefill(chunk, (byte) 0);
+                }
+            } catch (Exception e) {
+                int lastLen = chunk.length - 1;
+                while (lastLen >= 0 && chunk[lastLen] == 0) {
+                    lastLen--;
                 }
-                out.write(chunk, 0, lastLen);
+                if (++lastLen > 0) {
+                    if (header.getWmfSize() > out.size()) {
+                        // sometimes the wmfsize is smaller than the amount of already successfully read bytes
+                        // in this case we take the lastLen as-is, otherwise we truncate it to the given size
+                        lastLen = Math.min(lastLen, header.getWmfSize() - out.size());
+                    }
+                    out.write(chunk, 0, lastLen);
+                }
+                // End of picture marker for PICT is 0x00 0xFF
+                LOG.atError().withThrowable(e).log("PICT zip-stream is invalid, read as much as possible. Uncompressed length of header: {} / Read bytes: {}", box(header.getWmfSize()), box(out.size()));
             }
-            // End of picture marker for PICT is 0x00 0xFF
-            LOG.atError().withThrowable(e).log("PICT zip-stream is invalid, read as much as possible. Uncompressed length of header: {} / Read bytes: {}", box(header.getWmfSize()),box(out.size()));
+            return out.toByteArray();
         }
-        return out.toByteArray();
     }
 
     @Override

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/EscherTextboxWrapper.java

@@ -89,12 +89,13 @@ public final class EscherTextboxWrapper extends RecordContainer {
         // Write out our children, and stuff them into the Escher layer
 
         // Grab the children's data
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
-        for (org.apache.poi.hslf.record.Record r : _children) r.writeOut(baos);
-        byte[] data = baos.toByteArray();
-
-        // Save in the escher layer
-        _escherRecord.setData(data);
+        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+            for (org.apache.poi.hslf.record.Record r : _children) {
+                r.writeOut(baos);
+            }
+            // Save in the escher layer
+            _escherRecord.setData(baos.toByteArray());
+        }
     }
 
     /**

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/ExOleObjStg.java

@@ -27,8 +27,8 @@ import java.util.function.Supplier;
 import java.util.zip.DeflaterOutputStream;
 import java.util.zip.InflaterInputStream;
 
-import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.commons.io.input.BoundedInputStream;
+import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.poi.util.GenericRecordUtil;
 import org.apache.poi.util.IOUtils;
 import org.apache.poi.util.LittleEndian;
@@ -124,18 +124,19 @@ public class ExOleObjStg extends PositionDependentRecordAtom implements PersistR
      * @param data the embedded data.
      */
      public void setData(byte[] data) throws IOException {
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
-        //first four bytes is the length of the raw data
-        byte[] b = new byte[4];
-        LittleEndian.putInt(b, 0, data.length);
-        out.write(b);
-
-        DeflaterOutputStream def = new DeflaterOutputStream(out);
-        def.write(data, 0, data.length);
-        def.finish();
-        // TODO: CHECK if it's correct that DeflaterOutputStream is only finished and not closed?
-        _data = out.toByteArray();
-        LittleEndian.putInt(_header, 4, _data.length);
+        try (UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+             DeflaterOutputStream def = new DeflaterOutputStream(out)) {
+            //first four bytes is the length of the raw data
+            byte[] b = new byte[4];
+            LittleEndian.putInt(b, 0, data.length);
+            out.write(b);
+
+            def.write(data, 0, data.length);
+            def.finish();
+            // TODO: CHECK if it's correct that DeflaterOutputStream is only finished and not closed?
+            _data = out.toByteArray();
+            LittleEndian.putInt(_header, 4, _data.length);
+        }
     }
 
     /**

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/PPDrawingGroup.java

@@ -49,7 +49,7 @@ public final class PPDrawingGroup extends RecordAtom {
     //cached dgg
     private EscherDggRecord dgg;
 
-    protected PPDrawingGroup(byte[] source, int start, int len) {
+    PPDrawingGroup(byte[] source, int start, int len) {
         // Get the header
         _header = Arrays.copyOfRange(source, start, start+8);
 
@@ -80,44 +80,44 @@ public final class PPDrawingGroup extends RecordAtom {
 
     @Override
     public void writeOut(OutputStream out) throws IOException {
-        UnsynchronizedByteArrayOutputStream bout = new UnsynchronizedByteArrayOutputStream();
-        for (EscherRecord r : dggContainer) {
-            if (r.getRecordId() == EscherContainerRecord.BSTORE_CONTAINER){
-                EscherContainerRecord bstore = (EscherContainerRecord)r;
-
-                UnsynchronizedByteArrayOutputStream b2 = new UnsynchronizedByteArrayOutputStream();
-                for (EscherRecord br : bstore) {
-                    byte[] b = new byte[36+8];
-                    br.serialize(0, b);
-                    b2.write(b);
+        byte[] bstorehead = new byte[8];
+        byte[] recordBytes = new byte[36 + 8];
+        try (UnsynchronizedByteArrayOutputStream bout = new UnsynchronizedByteArrayOutputStream();
+             UnsynchronizedByteArrayOutputStream recordBuf = new UnsynchronizedByteArrayOutputStream()) {
+            for (EscherRecord r : dggContainer) {
+                if (r.getRecordId() == EscherContainerRecord.BSTORE_CONTAINER) {
+                    EscherContainerRecord bstore = (EscherContainerRecord) r;
+                    recordBuf.reset();
+                    for (EscherRecord br : bstore) {
+                        br.serialize(0, recordBytes);
+                        recordBuf.write(recordBytes);
+                    }
+                    LittleEndian.putShort(bstorehead, 0, bstore.getOptions());
+                    LittleEndian.putShort(bstorehead, 2, bstore.getRecordId());
+                    LittleEndian.putInt(bstorehead, 4, recordBuf.size());
+                    bout.write(bstorehead);
+                    recordBuf.writeTo(bout);
+                } else {
+                    bout.write(r.serialize());
                 }
-                byte[] bstorehead = new byte[8];
-                LittleEndian.putShort(bstorehead, 0, bstore.getOptions());
-                LittleEndian.putShort(bstorehead, 2, bstore.getRecordId());
-                LittleEndian.putInt(bstorehead, 4, b2.size());
-                bout.write(bstorehead);
-                bout.write(b2.toByteArray());
-
-            } else {
-                bout.write(r.serialize());
             }
-        }
-        int size = bout.size();
+            int size = bout.size();
 
-        // Update the size (header bytes 5-8)
-        LittleEndian.putInt(_header,4,size+8);
+            // Update the size (header bytes 5-8)
+            LittleEndian.putInt(_header, 4, size + 8);
 
-        // Write out our header
-        out.write(_header);
+            // Write out our header
+            out.write(_header);
 
-        byte[] dgghead = new byte[8];
-        LittleEndian.putShort(dgghead, 0, dggContainer.getOptions());
-        LittleEndian.putShort(dgghead, 2, dggContainer.getRecordId());
-        LittleEndian.putInt(dgghead, 4, size);
-        out.write(dgghead);
+            byte[] dgghead = new byte[8];
+            LittleEndian.putShort(dgghead, 0, dggContainer.getOptions());
+            LittleEndian.putShort(dgghead, 2, dggContainer.getRecordId());
+            LittleEndian.putInt(dgghead, 4, size);
+            out.write(dgghead);
 
-        // Finally, write out the children
-        bout.writeTo(out);
+            // Finally, write out the children
+            bout.writeTo(out);
+        }
     }
 
     public EscherContainerRecord getDggContainer(){

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/RecordContainer.java

@@ -227,30 +227,30 @@ public abstract class RecordContainer extends Record
      */
     public void writeOut(byte headerA, byte headerB, long type, Record[] children, OutputStream out) throws IOException {
         // Create a UnsynchronizedByteArrayOutputStream to hold everything in
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
-
-        // Write out our header, less the size
-        baos.write(new byte[] {headerA,headerB});
-        byte[] typeB = new byte[2];
-        LittleEndian.putShort(typeB,0,(short)type);
-        baos.write(typeB);
-        baos.write(new byte[] {0,0,0,0});
-
-        // Write out our children
-        for (Record aChildren : children) {
-            aChildren.writeOut(baos);
-        }
+        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+
+            // Write out our header, less the size
+            baos.write(new byte[]{headerA, headerB});
+            byte[] typeB = new byte[2];
+            LittleEndian.putShort(typeB, 0, (short) type);
+            baos.write(typeB);
+            baos.write(new byte[]{0, 0, 0, 0});
+
+            // Write out our children
+            for (Record aChildren : children) {
+                aChildren.writeOut(baos);
+            }
 
-        // Grab the bytes back
-        byte[] toWrite = baos.toByteArray();
+            // Grab the bytes back
+            byte[] toWrite = baos.toByteArray();
 
-        // Update our header with the size
-        // Don't forget to knock 8 more off, since we don't include the
-        //  header in the size
-        LittleEndian.putInt(toWrite,4,(toWrite.length-8));
+            // Update our header with the size
+            // Don't forget to knock 8 more off, since we don't include the header in the size
+            LittleEndian.putInt(toWrite, 4, (toWrite.length - 8));
 
-        // Write out the bytes
-        out.write(toWrite);
+            // Write out the bytes
+            out.write(toWrite);
+        }
     }
 
     /**

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/StyleTextPropAtom.java

@@ -309,22 +309,20 @@ public final class StyleTextPropAtom extends RecordAtom {
      */
     private void updateRawContents() throws IOException {
         if (initialised) {
-            // Only update the style bytes, if the styles have been potentially
-            // changed
-
-            UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
-
-            // First up, we need to serialise the paragraph properties
-            for(TextPropCollection tpc : paragraphStyles) {
-                tpc.writeOut(baos);
+            // Only update the style bytes, if the styles have been potentially changed
+            try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+                // First up, we need to serialise the paragraph properties
+                for (TextPropCollection tpc : paragraphStyles) {
+                    tpc.writeOut(baos);
+                }
+
+                // Now, we do the character ones
+                for (TextPropCollection tpc : charStyles) {
+                    tpc.writeOut(baos);
+                }
+
+                rawContents = baos.toByteArray();
             }
-
-            // Now, we do the character ones
-            for(TextPropCollection tpc : charStyles) {
-                tpc.writeOut(baos);
-            }
-
-            rawContents = baos.toByteArray();
         }
 
         // Now ensure that the header size is correct

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/TextSpecInfoAtom.java

@@ -130,26 +130,28 @@ public final class TextSpecInfoAtom extends RecordAtom {
      */
     public void setParentSize(int size) {
         assert(size > 0);
-        int covered = 0;
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-        TextSpecInfoRun[] runs = getTextSpecInfoRuns();
-        assert(runs.length > 0);
-        for (int i=0; i<runs.length && covered < size; i++) {
-            TextSpecInfoRun run = runs[i];
-            if (covered + run.getLength() > size || i == runs.length-1) {
-                run.setLength(size-covered);
-            }
-            covered += run.getLength();
-            try {
+
+        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            TextSpecInfoRun[] runs = getTextSpecInfoRuns();
+            int remaining = size;
+            int idx = 0;
+            for (TextSpecInfoRun run : runs) {
+                int len = run.getLength();
+                if (len > remaining || idx == runs.length - 1) {
+                    run.setLength(len = remaining);
+                }
+                remaining -= len;
                 run.writeOut(bos);
-            } catch (IOException e) {
-                throw new HSLFException(e);
+                idx++;
             }
-        }
-        _data = bos.toByteArray();
 
-        // Update the size (header bytes 5-8)
-        LittleEndian.putInt(_header, 4, _data.length);
+            _data = bos.toByteArray();
+
+            // Update the size (header bytes 5-8)
+            LittleEndian.putInt(_header, 4, _data.length);
+        } catch (IOException e) {
+            throw new HSLFException(e);
+        }
     }
 
     /**

poi-scratchpad/src/main/java/org/apache/poi/hwmf/usermodel/HwmfEmbeddedIterator.java

@@ -110,33 +110,29 @@ public class HwmfEmbeddedIterator implements Iterator<HwmfEmbedded> {
         if (!(current instanceof HwmfEscape)) {
             return null;
         }
-        final HwmfEscape esc = (HwmfEscape)current;
-        assert(esc.getEscapeFunction() == EscapeFunction.META_ESCAPE_ENHANCED_METAFILE);
-
-        WmfEscapeEMF img = esc.getEscapeData();
-        assert(img.isValid());
-        current = null;
 
         final HwmfEmbedded emb = new HwmfEmbedded();
         emb.setEmbeddedType(HwmfEmbeddedType.EMF);
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-        try {
-            for (;;) {
-                bos.write(img.getEmfData());
+        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            WmfEscapeEMF img;
+            do {
+                final HwmfEscape esc = (HwmfEscape)current;
+                assert(esc.getEscapeFunction() == EscapeFunction.META_ESCAPE_ENHANCED_METAFILE);
 
+                img = esc.getEscapeData();
+                assert(img.isValid());
+
+                bos.write(img.getEmfData());
                 current = null;
-                if (img.getRemainingBytes() > 0 && hasNext() && (current instanceof HwmfEscape)) {
-                    img = ((HwmfEscape)current).getEscapeData();
-                } else {
-                    return emb;
-                }
-            }
+            } while (img.getRemainingBytes() > 0 && hasNext() && (current instanceof HwmfEscape));
+
+            emb.setData(bos.toByteArray());
+            return emb;
+
         } catch (IOException ignored) {
             // UnsynchronizedByteArrayOutputStream doesn't throw IOException
             return null;
-        } finally {
-            emb.setData(bos.toByteArray());
         }
     }
 }

poi/build.gradle

@@ -104,6 +104,8 @@ task cacheTest9(type: Copy) {
 }
 
 jar {
+    dependsOn cacheJava9
+
     if (JavaVersion.current() == JavaVersion.VERSION_1_8) {
         into('META-INF/versions/9') {
             from JAVA9_SRC include '*.class'
@@ -117,7 +119,7 @@ jar {
 
 // Create a separate jar for test-code to depend on it in other projects
 // See http://stackoverflow.com/questions/5144325/gradle-test-dependency
-task testJar(type: Jar, dependsOn: testClasses) {
+task testJar(type: Jar, dependsOn: [ testClasses, cacheTest9 ]) {
     destinationDirectory = file("../build/dist/maven/${project.archivesBaseName}-tests")
 
     classifier 'tests'

poi/src/main/java/org/apache/poi/hpsf/ClassID.java

@@ -49,7 +49,7 @@ public class ClassID implements Duplicatable, GenericRecord {
     private final byte[] bytes = new byte[LENGTH];
 
     /**
-     * Creates a {@link ClassID} and reads its value from a byte array.
+     * Creates a ClassID and reads its value from a byte array.
      *
      * @param src The byte array to read from.
      * @param offset The offset of the first byte to read.
@@ -60,7 +60,7 @@ public class ClassID implements Duplicatable, GenericRecord {
 
 
     /**
-     * Creates a {@link ClassID} and initializes its value with 0x00 bytes.
+     * Creates a ClassID and initializes its value with 0x00 bytes.
      */
     public ClassID() {
         Arrays.fill(bytes, (byte)0);
@@ -77,7 +77,7 @@ public class ClassID implements Duplicatable, GenericRecord {
 
 
     /**
-     * Creates a {@link ClassID} from a human-readable representation of the Class ID in standard
+     * Creates a ClassID from a human-readable representation of the Class ID in standard
      * format {@code "{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}"}.
      *
      * @param externalForm representation of the Class ID represented by this object.
@@ -102,12 +102,11 @@ public class ClassID implements Duplicatable, GenericRecord {
     /**
      * @return The number of bytes occupied by this object in the byte stream.
      */
+    @SuppressWarnings("java:S1845")
     public int length() {
         return LENGTH;
     }
 
-
-
     /**
      * Gets the bytes making out the class ID. They are returned in correct order, i.e. big-endian.
      *
@@ -117,8 +116,6 @@ public class ClassID implements Duplicatable, GenericRecord {
         return bytes;
     }
 
-
-
     /**
      * Sets the bytes making out the class ID.
      *
@@ -129,8 +126,6 @@ public class ClassID implements Duplicatable, GenericRecord {
         System.arraycopy(bytes, 0, this.bytes, 0, LENGTH);
     }
 
-
-
     /**
      * Reads the class ID's value from a byte array by turning little-endian into big-endian.
      *
@@ -249,10 +244,6 @@ public class ClassID implements Duplicatable, GenericRecord {
         ;
     }
 
-
-    /**
-     * @see Object#hashCode()
-     */
     @Override
     public int hashCode() {
         return toString().hashCode();

poi/src/main/java/org/apache/poi/hpsf/PropertySet.java

@@ -514,51 +514,52 @@ public class PropertySet {
     }
 
     private byte[] toBytes() throws WritingNotSupportedException, IOException {
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-        LittleEndianOutputStream leos = new LittleEndianOutputStream(bos);
-
-        /* Write the number of sections in this property set stream. */
-        final int nrSections = getSectionCount();
-
-        /* Write the property set's header. */
-        leos.writeShort(getByteOrder());
-        leos.writeShort(getFormat());
-        leos.writeInt(getOSVersion());
-        putClassId(bos, getClassID());
-        leos.writeInt(nrSections);
-
-        assert(bos.size() == OFFSET_HEADER);
-
-        final int[][] offsets = new int[getSectionCount()][2];
-
-        /* Write the section list, i.e. the references to the sections. Each
-         * entry in the section list consist of the section's class ID and the
-         * section's offset relative to the beginning of the stream. */
-        int secCnt = 0;
-        for (final Section section : getSections()) {
-            final ClassID formatID = section.getFormatID();
-            if (formatID == null) {
-                throw new NoFormatIDException();
+        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+            LittleEndianOutputStream leos = new LittleEndianOutputStream(bos)) {
+
+            /* Write the number of sections in this property set stream. */
+            final int nrSections = getSectionCount();
+
+            /* Write the property set's header. */
+            leos.writeShort(getByteOrder());
+            leos.writeShort(getFormat());
+            leos.writeInt(getOSVersion());
+            putClassId(bos, getClassID());
+            leos.writeInt(nrSections);
+
+            assert (bos.size() == OFFSET_HEADER);
+
+            final int[][] offsets = new int[getSectionCount()][2];
+
+            /* Write the section list, i.e. the references to the sections. Each
+             * entry in the section list consist of the section's class ID and the
+             * section's offset relative to the beginning of the stream. */
+            int secCnt = 0;
+            for (final Section section : getSections()) {
+                final ClassID formatID = section.getFormatID();
+                if (formatID == null) {
+                    throw new NoFormatIDException();
+                }
+                putClassId(bos, formatID);
+                offsets[secCnt++][0] = bos.size();
+                // offset dummy - filled later
+                leos.writeInt(-1);
             }
-            putClassId(bos, formatID);
-            offsets[secCnt++][0] = bos.size();
-            // offset dummy - filled later
-            leos.writeInt(-1);
-        }
 
-        /* Write the sections themselves. */
-        secCnt = 0;
-        for (final Section section : getSections()) {
-            offsets[secCnt++][1] = bos.size();
-            section.write(bos);
-        }
+            /* Write the sections themselves. */
+            secCnt = 0;
+            for (final Section section : getSections()) {
+                offsets[secCnt++][1] = bos.size();
+                section.write(bos);
+            }
 
-        byte[] result = bos.toByteArray();
-        for (int[] off : offsets) {
-            LittleEndian.putInt(result, off[0], off[1]);
-        }
+            byte[] result = bos.toByteArray();
+            for (int[] off : offsets) {
+                LittleEndian.putInt(result, off[0], off[1]);
+            }
 
-        return result;
+            return result;
+        }
     }
 
     /**

poi/src/main/java/org/apache/poi/hpsf/Section.java

@@ -735,53 +735,54 @@ public class Section {
         }
 
         final int[][] offsets = new int[properties.size()][2];
-        final UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-        final LittleEndianOutputStream leos = new LittleEndianOutputStream(bos);
+        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+            LittleEndianOutputStream leos = new LittleEndianOutputStream(bos)) {
 
-        /* Write the section's length - dummy value, fixed later */
-        leos.writeInt(-1);
+            /* Write the section's length - dummy value, fixed later */
+            leos.writeInt(-1);
 
-        /* Write the section's number of properties: */
-        leos.writeInt(properties.size());
+            /* Write the section's number of properties: */
+            leos.writeInt(properties.size());
 
-        int propCnt = 0;
-        for (Property p : properties.values()) {
-            /* Write the property list entry. */
-            leos.writeUInt(p.getID());
-            // dummy offset to be fixed later
-            offsets[propCnt++][0] = bos.size();
-            leos.writeInt(-1);
-        }
+            int propCnt = 0;
+            for (Property p : properties.values()) {
+                /* Write the property list entry. */
+                leos.writeUInt(p.getID());
+                // dummy offset to be fixed later
+                offsets[propCnt++][0] = bos.size();
+                leos.writeInt(-1);
+            }
 
 
-        /* Write the properties and the property list into their respective
-         * streams: */
-        propCnt = 0;
-        for (Property p : properties.values()) {
-            offsets[propCnt++][1] = bos.size();
-            /* If the property ID is not equal 0 we write the property and all
-             * is fine. However, if it equals 0 we have to write the section's
-             * dictionary which has an implicit type only and an explicit
-             * value. */
-            if (p.getID() != 0) {
-                /* Write the property and update the position to the next
-                 * property. */
-                p.write(bos, codepage);
-            } else {
-                writeDictionary(bos, codepage);
+            /* Write the properties and the property list into their respective
+             * streams: */
+            propCnt = 0;
+            for (Property p : properties.values()) {
+                offsets[propCnt++][1] = bos.size();
+                /* If the property ID is not equal 0 we write the property and all
+                 * is fine. However, if it equals 0 we have to write the section's
+                 * dictionary which has an implicit type only and an explicit
+                 * value. */
+                if (p.getID() != 0) {
+                    /* Write the property and update the position to the next
+                     * property. */
+                    p.write(bos, codepage);
+                } else {
+                    writeDictionary(bos, codepage);
+                }
             }
-        }
 
-        byte[] result = bos.toByteArray();
-        LittleEndian.putInt(result, 0, bos.size());
+            byte[] result = bos.toByteArray();
+            LittleEndian.putInt(result, 0, bos.size());
 
-        for (int[] off : offsets) {
-            LittleEndian.putUInt(result, off[0], off[1]);
-        }
+            for (int[] off : offsets) {
+                LittleEndian.putUInt(result, off[0], off[1]);
+            }
 
-        out.write(result);
+            out.write(result);
 
-        return bos.size();
+            return bos.size();
+        }
     }
 
     /**

poi/src/main/java/org/apache/poi/hssf/record/RecordInputStream.java

@@ -459,17 +459,20 @@ public final class RecordInputStream implements LittleEndianInput {
      */
     @Deprecated
     public byte[] readAllContinuedRemainder() {
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream(2 * MAX_RECORD_DATA_SIZE);
+        try (UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream(2 * MAX_RECORD_DATA_SIZE)) {
 
-        while (true) {
-            byte[] b = readRemainder();
-            out.write(b, 0, b.length);
-            if (!isContinueNext()) {
-                break;
+            while (true) {
+                byte[] b = readRemainder();
+                out.write(b, 0, b.length);
+                if (!isContinueNext()) {
+                    break;
+                }
+                nextRecord();
             }
-            nextRecord();
+            return out.toByteArray();
+        } catch (IOException ex) {
+            throw new RecordFormatException(ex);
         }
-        return out.toByteArray();
     }
 
     /** The remaining number of bytes in the <i>current</i> record.

poi/src/main/java/org/apache/poi/hssf/usermodel/HSSFConditionalFormattingRule.java

@@ -64,8 +64,8 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
      * Only newer style formatting rules have priorities. For older ones,
      *  we don't know priority for these, other than definition/model order,
      *  which appears to be what Excel uses.
-     * @see org.apache.poi.ss.usermodel.ConditionalFormattingRule#getPriority()
      */
+    @Override
     public int getPriority() {
         CFRule12Record rule12 = getCFRule12Record(false);
         if (rule12 == null) return 0;
@@ -74,8 +74,8 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
 
     /**
      * Always true for HSSF files, per Microsoft Excel documentation
-     * @see org.apache.poi.ss.usermodel.ConditionalFormattingRule#getStopIfTrue()
      */
+    @Override
     public boolean getStopIfTrue() {
         return true;
     }
@@ -95,8 +95,8 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
 
     /**
      * Always null for HSSF records, until someone figures out where to find it
-     * @see org.apache.poi.ss.usermodel.ConditionalFormattingRule#getNumberFormat()
      */
+    @Override
     public ExcelNumberFormat getNumberFormat() {
         return null;
     }
@@ -112,16 +112,18 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
     }
 
     /**
-     * @return - font formatting object  if defined,  <code>null</code> otherwise
+     * @return - font formatting object  if defined,  {@code null} otherwise
      */
+    @Override
     public HSSFFontFormatting getFontFormatting() {
         return getFontFormatting(false);
     }
     /**
      * create a new font formatting structure if it does not exist,
      * otherwise just return existing object.
-     * @return - font formatting object, never returns <code>null</code>.
+     * @return - font formatting object, never returns {@code null}.
      */
+    @Override
     public HSSFFontFormatting createFontFormatting() {
         return getFontFormatting(true);
     }
@@ -137,16 +139,18 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
     }
 
     /**
-     * @return - border formatting object  if defined,  <code>null</code> otherwise
+     * @return - border formatting object  if defined,  {@code null} otherwise
      */
+    @Override
     public HSSFBorderFormatting getBorderFormatting() {
         return getBorderFormatting(false);
     }
     /**
      * create a new border formatting structure if it does not exist,
      * otherwise just return existing object.
-     * @return - border formatting object, never returns <code>null</code>.
+     * @return - border formatting object, never returns {@code null}.
      */
+    @Override
     public HSSFBorderFormatting createBorderFormatting() {
         return getBorderFormatting(true);
     }
@@ -162,8 +166,9 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
     }
 
     /**
-     * @return - pattern formatting object  if defined, <code>null</code> otherwise
+     * @return - pattern formatting object  if defined, {@code null} otherwise
      */
+    @Override
     public HSSFPatternFormatting getPatternFormatting()
     {
         return getPatternFormatting(false);
@@ -171,8 +176,9 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
     /**
      * create a new pattern formatting structure if it does not exist,
      * otherwise just return existing object.
-     * @return - pattern formatting object, never returns <code>null</code>.
+     * @return - pattern formatting object, never returns {@code null}.
      */
+    @Override
     public HSSFPatternFormatting createPatternFormatting()
     {
         return getPatternFormatting(true);
@@ -192,8 +198,9 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
     }
 
     /**
-     * @return databar / data-bar formatting object if defined, <code>null</code> otherwise
+     * @return databar / data-bar formatting object if defined, {@code null} otherwise
      */
+    @Override
     public HSSFDataBarFormatting getDataBarFormatting() {
         return getDataBarFormatting(false);
     }
@@ -218,8 +225,9 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
     }
 
     /**
-     * @return icon / multi-state formatting object if defined, <code>null</code> otherwise
+     * @return icon / multi-state formatting object if defined, {@code null} otherwise
      */
+    @Override
     public HSSFIconMultiStateFormatting getMultiStateFormatting() {
         return getMultiStateFormatting(false);
     }
@@ -245,8 +253,9 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
     }
 
     /**
-     * @return color scale / gradient formatting object if defined, <code>null</code> otherwise
+     * @return color scale / gradient formatting object if defined, {@code null} otherwise
      */
+    @Override
     public HSSFColorScaleFormatting getColorScaleFormatting() {
         return getColorScaleFormatting(false);
     }
@@ -270,12 +279,13 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
 
     /**
      * always null (not a filter condition) or {@link ConditionFilterType#FILTER} if it is.
-     * @see org.apache.poi.ss.usermodel.ConditionalFormattingRule#getConditionFilterType()
      */
+    @Override
     public ConditionFilterType getConditionFilterType() {
         return getConditionType() == ConditionType.FILTER ? ConditionFilterType.FILTER : null;
     }
 
+    @Override
     public ConditionFilterData getFilterConfiguration() {
         return null;
     }
@@ -288,11 +298,13 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
         return cfRuleRecord.getComparisonOperation();
     }
 
+    @Override
     public String getFormula1()
     {
         return toFormulaString(cfRuleRecord.getParsedExpression1());
     }
 
+    @Override
     public String getFormula2() {
         byte conditionType = cfRuleRecord.getConditionType();
         if (conditionType == CELL_COMPARISON) {
@@ -306,6 +318,7 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
         return null;
     }
 
+    @Override
     public String getText() {
         return null; // not available here, unless it exists and is unimplemented in cfRuleRecord
     }
@@ -325,6 +338,7 @@ public final class HSSFConditionalFormattingRule implements ConditionalFormattin
      * Conditional format rules don't define stripes, so always 0
      * @see org.apache.poi.ss.usermodel.DifferentialStyleProvider#getStripeSize()
      */
+    @Override
     public int getStripeSize() {
         return 0;
     }

poi/src/main/java/org/apache/poi/hssf/usermodel/HSSFConditionalFormattingThreshold.java

@@ -31,32 +31,40 @@ public final class HSSFConditionalFormattingThreshold implements org.apache.poi.
     private final HSSFSheet sheet;
     private final HSSFWorkbook workbook;
 
-    protected HSSFConditionalFormattingThreshold(Threshold threshold, HSSFSheet sheet) {
+    HSSFConditionalFormattingThreshold(Threshold threshold, HSSFSheet sheet) {
         this.threshold = threshold;
         this.sheet = sheet;
         this.workbook = sheet.getWorkbook();
     }
-    protected Threshold getThreshold() {
+
+    Threshold getThreshold() {
         return threshold;
     }
 
+    @Override
     public RangeType getRangeType() {
         return RangeType.byId(threshold.getType());
     }
+    @Override
     public void setRangeType(RangeType type) {
         threshold.setType((byte)type.id);
     }
 
+    @Override
     public String getFormula() {
         return toFormulaString(threshold.getParsedExpression(), workbook);
     }
+    @Override
     public void setFormula(String formula) {
         threshold.setParsedExpression(parseFormula(formula, sheet));
     }
 
+    @Override
     public Double getValue() {
         return threshold.getValue();
     }
+
+    @Override
     public void setValue(Double value) {
         threshold.setValue(value);
     }

poi/src/main/java/org/apache/poi/hssf/usermodel/HSSFIconMultiStateFormatting.java

@@ -24,41 +24,46 @@ import org.apache.poi.hssf.record.cf.Threshold;
 import org.apache.poi.ss.usermodel.ConditionalFormattingThreshold;
 
 /**
- * High level representation for Icon / Multi-State Formatting 
+ * High level representation for Icon / Multi-State Formatting
  *  component of Conditional Formatting settings
  */
 public final class HSSFIconMultiStateFormatting implements org.apache.poi.ss.usermodel.IconMultiStateFormatting {
     private final HSSFSheet sheet;
-    private final CFRule12Record cfRule12Record;
     private final IconMultiStateFormatting iconFormatting;
 
-    protected HSSFIconMultiStateFormatting(CFRule12Record cfRule12Record, HSSFSheet sheet) {
+    HSSFIconMultiStateFormatting(CFRule12Record cfRule12Record, HSSFSheet sheet) {
         this.sheet = sheet;
-        this.cfRule12Record = cfRule12Record;
-        this.iconFormatting = this.cfRule12Record.getMultiStateFormatting();
+        this.iconFormatting = cfRule12Record.getMultiStateFormatting();
     }
 
+    @Override
     public IconSet getIconSet() {
         return iconFormatting.getIconSet();
     }
+    @Override
     public void setIconSet(IconSet set) {
         iconFormatting.setIconSet(set);
     }
 
+    @Override
     public boolean isIconOnly() {
         return iconFormatting.isIconOnly();
     }
+    @Override
     public void setIconOnly(boolean only) {
         iconFormatting.setIconOnly(only);
     }
 
+    @Override
     public boolean isReversed() {
         return iconFormatting.isReversed();
     }
+    @Override
     public void setReversed(boolean reversed) {
         iconFormatting.setReversed(reversed);
     }
 
+    @Override
     public HSSFConditionalFormattingThreshold[] getThresholds() {
         Threshold[] t = iconFormatting.getThresholds();
         HSSFConditionalFormattingThreshold[] ht = new HSSFConditionalFormattingThreshold[t.length];
@@ -68,6 +73,7 @@ public final class HSSFIconMultiStateFormatting implements org.apache.poi.ss.use
         return ht;
     }
 
+    @Override
     public void setThresholds(ConditionalFormattingThreshold[] thresholds) {
         Threshold[] t = new Threshold[thresholds.length];
         for (int i=0; i<t.length; i++) {
@@ -76,6 +82,7 @@ public final class HSSFIconMultiStateFormatting implements org.apache.poi.ss.use
         iconFormatting.setThresholds(t);
     }
 
+    @Override
     public HSSFConditionalFormattingThreshold createThreshold() {
         return new HSSFConditionalFormattingThreshold(new IconMultiStateThreshold(), sheet);
     }

poi/src/main/java/org/apache/poi/hssf/usermodel/HSSFWorkbookFactory.java

@@ -48,6 +48,7 @@ public class HSSFWorkbookFactory implements WorkbookProvider {
      *
      * @return The created workbook
      */
+    @Override
     public HSSFWorkbook create() {
         return new HSSFWorkbook();
     }
@@ -66,6 +67,7 @@ public class HSSFWorkbookFactory implements WorkbookProvider {
      * Note that in order to properly release resources the
      * Workbook should be closed after use.
      */
+    @Override
     public HSSFWorkbook create(final DirectoryNode root, String password) throws IOException {
         boolean passwordSet = false;
         if (password != null) {
@@ -93,6 +95,7 @@ public class HSSFWorkbookFactory implements WorkbookProvider {
     }
 
     @Override
+    @SuppressWarnings("java:S2095")
     public Workbook create(File file, String password, boolean readOnly) throws IOException {
         boolean passwordSet = false;
         if (password != null) {
@@ -104,11 +107,8 @@ public class HSSFWorkbookFactory implements WorkbookProvider {
             try {
                 return new HSSFWorkbook(fs, true);
             } catch (RuntimeException e) {
-                // we need to close the filesystem
-                // if we encounter an exception to
-                // not leak file handles
+                // we need to close the filesystem if we encounter an exception to not leak file handles
                 fs.close();
-
                 throw e;
             }
         } finally {

poi/src/main/java/org/apache/poi/poifs/crypt/cryptoapi/CryptoAPIDecryptor.java

@@ -28,7 +28,7 @@ import javax.crypto.Cipher;
 import javax.crypto.SecretKey;
 import javax.crypto.spec.SecretKeySpec;
 
-import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
+import org.apache.commons.io.input.BoundedInputStream;
 import org.apache.poi.EncryptedDocumentException;
 import org.apache.poi.poifs.crypt.ChunkedCipherInputStream;
 import org.apache.poi.poifs.crypt.CryptoFunctions;
@@ -39,11 +39,9 @@ import org.apache.poi.poifs.crypt.EncryptionVerifier;
 import org.apache.poi.poifs.crypt.HashAlgorithm;
 import org.apache.poi.poifs.filesystem.DirectoryNode;
 import org.apache.poi.poifs.filesystem.DocumentInputStream;
-import org.apache.poi.poifs.filesystem.DocumentNode;
 import org.apache.poi.poifs.filesystem.POIFSFileSystem;
 import org.apache.poi.util.BitField;
 import org.apache.poi.util.BitFieldFactory;
-import org.apache.commons.io.input.BoundedInputStream;
 import org.apache.poi.util.IOUtils;
 import org.apache.poi.util.LittleEndian;
 import org.apache.poi.util.LittleEndianInputStream;
@@ -170,14 +168,10 @@ public class CryptoAPIDecryptor extends Decryptor {
      */
     public POIFSFileSystem getSummaryEntries(DirectoryNode root, String encryptedStream)
     throws IOException, GeneralSecurityException {
-        DocumentNode es = (DocumentNode) root.getEntry(encryptedStream);
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-        try (DocumentInputStream dis = root.createDocumentInputStream(es)) {
-            IOUtils.copy(dis, bos);
-        }
         POIFSFileSystem fsOut = null;
         try (
-            CryptoAPIDocumentInputStream sbis = new CryptoAPIDocumentInputStream(this, bos.toByteArray());
+            DocumentInputStream dis = root.createDocumentInputStream(root.getEntry(encryptedStream));
+            CryptoAPIDocumentInputStream sbis = new CryptoAPIDocumentInputStream(this, IOUtils.toByteArray(dis));
             LittleEndianInputStream leis = new LittleEndianInputStream(sbis)
         ) {
             int streamDescriptorArrayOffset = (int) leis.readUInt();

poi/src/main/java/org/apache/poi/poifs/macros/VBAMacroReader.java

@@ -68,6 +68,7 @@ import org.apache.poi.util.StringUtil;
  *
  * @since 3.15-beta2
  */
+@SuppressWarnings("unused")
 public class VBAMacroReader implements Closeable {
     private static final Logger LOGGER = LogManager.getLogger(VBAMacroReader.class);
 
@@ -667,35 +668,36 @@ public class VBAMacroReader implements Closeable {
 
     private static String readUnicode(InputStream is) throws IOException {
         //reads null-terminated unicode string
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-        int b0 = IOUtils.readByte(is);
-        int b1 = IOUtils.readByte(is);
-
-        int read = 2;
-        while ((b0 + b1) != 0 && read < MAX_STRING_LENGTH) {
-
-            bos.write(b0);
-            bos.write(b1);
-            b0 = IOUtils.readByte(is);
-            b1 = IOUtils.readByte(is);
-            read += 2;
-        }
-        if (read >= MAX_STRING_LENGTH) {
-            LOGGER.atWarn().log("stopped reading unicode name after {} bytes", box(read));
+        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            int b0 = IOUtils.readByte(is);
+            int b1 = IOUtils.readByte(is);
+
+            int read = 2;
+            while ((b0 + b1) != 0 && read < MAX_STRING_LENGTH) {
+                bos.write(b0);
+                bos.write(b1);
+                b0 = IOUtils.readByte(is);
+                b1 = IOUtils.readByte(is);
+                read += 2;
+            }
+            if (read >= MAX_STRING_LENGTH) {
+                LOGGER.atWarn().log("stopped reading unicode name after {} bytes", box(read));
+            }
+            return bos.toString(StandardCharsets.UTF_16LE);
         }
-        return bos.toString(StandardCharsets.UTF_16LE);
     }
 
     private static String readMBCS(int firstByte, InputStream is, Charset charset) throws IOException {
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-        int len = 0;
-        int b = firstByte;
-        while (b > 0 && len < MAX_STRING_LENGTH) {
-            ++len;
-            bos.write(b);
-            b = IOUtils.readByte(is);
-        }
-        return bos.toString(charset);
+        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            int len = 0;
+            int b = firstByte;
+            while (b > 0 && len < MAX_STRING_LENGTH) {
+                ++len;
+                bos.write(b);
+                b = IOUtils.readByte(is);
+            }
+            return bos.toString(charset);
+        }
     }
 
     /**
@@ -792,9 +794,7 @@ public class VBAMacroReader implements Closeable {
      */
     private static byte[] findCompressedStreamWBruteForce(InputStream is) throws IOException {
         //buffer to memory for multiple tries
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-        IOUtils.copy(is, bos);
-        byte[] compressed = bos.toByteArray();
+        byte[] compressed = IOUtils.toByteArray(is);
         byte[] decompressed = null;
         for (int i = 0; i < compressed.length; i++) {
             if (compressed[i] == 0x01 && i < compressed.length-1) {
@@ -821,12 +821,10 @@ public class VBAMacroReader implements Closeable {
     }
 
     private static byte[] tryToDecompress(InputStream is) {
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
-        try {
-            IOUtils.copy(new RLEDecompressingInputStream(is), bos);
+        try (RLEDecompressingInputStream ris = new RLEDecompressingInputStream(is)) {
+            return IOUtils.toByteArray(ris);
         } catch (IllegalArgumentException | IOException | IllegalStateException e){
             return null;
         }
-        return bos.toByteArray();
     }
 }

poi/src/main/java/org/apache/poi/ss/extractor/EmbeddedExtractor.java

@@ -162,14 +162,13 @@ public class EmbeddedExtractor implements Iterable<EmbeddedExtractor> {
 
     protected EmbeddedData extract(DirectoryNode dn) throws IOException {
         assert(canExtract(dn));
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(20000);
-        try (POIFSFileSystem dest = new POIFSFileSystem()) {
+        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(20000);
+            POIFSFileSystem dest = new POIFSFileSystem()) {
             copyNodes(dn, dest.getRoot());
             // start with a reasonable big size
             dest.writeFilesystem(bos);
+            return new EmbeddedData(dn.getName(), bos.toByteArray(), CONTENT_TYPE_BYTES);
         }
-
-        return new EmbeddedData(dn.getName(), bos.toByteArray(), CONTENT_TYPE_BYTES);
     }
 
     protected EmbeddedData extract(Picture source) throws IOException {

poi/src/main/java/org/apache/poi/ss/usermodel/ConditionalFormattingThreshold.java

@@ -27,7 +27,7 @@ package org.apache.poi.ss.usermodel;
  *  icon and which Yellow or Red.</p>
  */
 public interface ConditionalFormattingThreshold {
-    public enum RangeType {
+    enum RangeType {
         /** Number / Parameter */
         NUMBER(1, "num"),
         /** The minimum value from the range */
@@ -41,16 +41,16 @@ public interface ConditionalFormattingThreshold {
         UNALLOCATED(6, null),
         /** Formula result */
         FORMULA(7, "formula");
-        
+
         /** Numeric ID of the type */
         public final int id;
         /** Name (system) of the type */
         public final String name;
-        
+
         public String toString() {
             return id + " - " + name;
         }
-        
+
         public static RangeType byId(int id) {
             return values()[id-1]; // 1-based IDs
         }
@@ -60,51 +60,51 @@ public interface ConditionalFormattingThreshold {
             }
             return null;
         }
-        
-        private RangeType(int id, String name) {
+
+        RangeType(int id, String name) {
             this.id = id; this.name = name;
         }
     }
-    
+
     /**
      * Get the Range Type used
      */
     RangeType getRangeType();
-    
+
     /**
      * Changes the Range Type used
-     * 
+     *
      * <p>If you change the range type, you need to
      *  ensure that the Formula and Value parameters
      *  are compatible with it before saving</p>
      */
     void setRangeType(RangeType type);
-    
+
     /**
      * Formula to use to calculate the threshold,
-     *  or <code>null</code> if no formula 
+     *  or {@code null} if no formula
      */
     String getFormula();
 
     /**
      * Sets the formula used to calculate the threshold,
-     *  or unsets it if <code>null</code> is given.
+     *  or unsets it if {@code null} is given.
      */
     void setFormula(String formula);
-    
+
     /**
-     * Gets the value used for the threshold, or 
-     *  <code>null</code> if there isn't one.
+     * Gets the value used for the threshold, or
+     *  {@code null} if there isn't one.
      */
     Double getValue();
-    
+
     /**
-     * Sets the value used for the threshold. 
-     * <p>If the type is {@link RangeType#PERCENT} or 
+     * Sets the value used for the threshold.
+     * <p>If the type is {@link RangeType#PERCENT} or
      *  {@link RangeType#PERCENTILE} it must be between 0 and 100.
      * <p>If the type is {@link RangeType#MIN} or {@link RangeType#MAX}
      *  or {@link RangeType#FORMULA} it shouldn't be set.
-     * <p>Use <code>null</code> to unset
+     * <p>Use {@code null} to unset
      */
     void setValue(Double value);
 }

poi/src/main/java/org/apache/poi/util/GenericRecordJsonWriter.java

@@ -265,6 +265,7 @@ public class GenericRecordJsonWriter implements Closeable {
         return true;
     }
 
+    @SuppressWarnings("java:S3516")
     protected boolean printNumber(String name, Object o) {
         Number n = (Number)o;
         printName(name);

poi/src/main/java/org/apache/poi/util/IOUtils.java

@@ -178,29 +178,29 @@ public final class IOUtils {
         }
 
         final int len = Math.min(length, maxLength);
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream(len == Integer.MAX_VALUE ? 4096 : len);
+        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream(len == Integer.MAX_VALUE ? 4096 : len)) {
+            byte[] buffer = new byte[4096];
+            int totalBytes = 0, readBytes;
+            do {
+                readBytes = stream.read(buffer, 0, Math.min(buffer.length, len - totalBytes));
+                totalBytes += Math.max(readBytes, 0);
+                if (readBytes > 0) {
+                    baos.write(buffer, 0, readBytes);
+                }
 
-        byte[] buffer = new byte[4096];
-        int totalBytes = 0, readBytes;
-        do {
-            readBytes = stream.read(buffer, 0, Math.min(buffer.length, len-totalBytes));
-            totalBytes += Math.max(readBytes,0);
-            if (readBytes > 0) {
-                baos.write(buffer, 0, readBytes);
-            }
+                checkByteSizeLimit(totalBytes);
+            } while (totalBytes < len && readBytes > -1);
 
-            checkByteSizeLimit(totalBytes);
-        } while (totalBytes < len && readBytes > -1);
+            if (maxLength != Integer.MAX_VALUE && totalBytes == maxLength) {
+                throw new IOException("MaxLength (" + maxLength + ") reached - stream seems to be invalid.");
+            }
 
-        if (maxLength != Integer.MAX_VALUE && totalBytes == maxLength) {
-            throw new IOException("MaxLength ("+maxLength+") reached - stream seems to be invalid.");
-        }
+            if (len != Integer.MAX_VALUE && totalBytes < len) {
+                throw new EOFException("unexpected EOF - expected len: " + len + " - actual len: " + totalBytes);
+            }
 
-        if (len != Integer.MAX_VALUE && totalBytes < len) {
-            throw new EOFException("unexpected EOF - expected len: "+len+" - actual len: "+totalBytes);
+            return baos.toByteArray();
         }
-
-        return baos.toByteArray();
     }
 
     private static void checkLength(long length, int maxLength) {

poi/src/test/java/org/apache/poi/POITestCase.java

@@ -25,8 +25,6 @@ import static org.hamcrest.CoreMatchers.startsWith;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
-import static org.junit.jupiter.api.Assertions.fail;
-import static org.junit.jupiter.api.Assumptions.assumeTrue;
 
 import java.io.File;
 import java.lang.reflect.Field;
@@ -47,6 +45,7 @@ import org.mockito.internal.matchers.apachecommons.ReflectionEquals;
  * Util class for POI JUnit TestCases, which provide additional features
  */
 @Internal
+@SuppressWarnings("java:S2187")
 public final class POITestCase {
 
     private POITestCase() {
@@ -141,68 +140,6 @@ public final class POITestCase {
         assertTrue(new ReflectionEquals(expected, "$jacocoData").matches(actual));
     }
 
-    /**
-     * Rather than adding {@literal @}Ignore to known-failing tests,
-     * write the test so that it notifies us if it starts passing.
-     * This is useful for closing related or forgotten bugs.
-     *
-     * An Example:
-     * <code><pre>
-     * public static int add(int a, int b) {
-     *     // a known bug in behavior that has not been fixed yet
-     *     raise UnsupportedOperationException("add");
-     * }
-     *
-     * {@literal @}Test
-     * void knownFailingUnitTest() {
-     *     try {
-     *         assertEquals(2, add(1,1));
-     *         // this test fails because the assumption that this bug had not been fixed is false
-     *         testPassesNow(12345);
-     *     } catch (UnsupportedOperationException e) {
-     *         // test is skipped because the assumption that this bug had not been fixed is true
-     *         skipTest(e);
-     *     }
-     * }
-     *
-     * Once passing, this unit test can be rewritten as:
-     * {@literal @}Test
-     * void knownPassingUnitTest() {
-     *     assertEquals(2, add(1,1));
-     * }
-     *
-     * If you have a better idea how to simplify test code while still notifying
-     * us when a previous known-failing test now passes, please improve these.
-     * As a bonus, a known-failing test that fails should not be counted as a
-     * passing test.
-     *
-     * One possible alternative is to expect the known exception, but without
-     * a clear message that it is a good thing to no longer get the expected
-     * exception once the test passes.
-     * {@literal @}Test(expected=UnsupportedOperationException.class)
-     * void knownFailingUnitTest() {
-     *     assertEquals(2, add(1,1));
-     * }
-     *
-     * @param e  the exception that was caught that will no longer
-     * be raised when the bug is fixed
-     */
-    public static void skipTest(Throwable e) {
-        assumeTrue(e != null, "This test currently fails with");
-    }
-    /**
-     * @see #skipTest(Throwable)
-     *
-     * @param bug  the bug number corresponding to a known bug in bugzilla
-     */
-    public static void testPassesNow(int bug) {
-        fail("This test passes now. Please update the unit test and bug " + bug + ".");
-    }
-
-    public static void assertBetween(String message, int value, int min, int max) {
-        assertTrue(min <= value, message + ": " + value + " is less than the minimum value of " + min);
-        assertTrue(value <= max, message + ": " + value + " is greater than the maximum value of " + max);
-    }
 
     /**
      * Ensures that the temporary directory is defined and exists and

poi/src/test/java/org/apache/poi/ss/usermodel/BaseTestBugzillaIssues.java

@@ -1382,6 +1382,7 @@ public abstract class BaseTestBugzillaIssues {
     }
 
     @Test
+    @SuppressWarnings("java:S2699")
     void test58896() throws IOException {
         final int nrows = 160;
         final int ncols = 139;
@@ -1493,8 +1494,8 @@ public abstract class BaseTestBugzillaIssues {
 
             // *******************************
             // First cell of array formula, OK
-            int rowId = 0;
-            int cellId = 1;
+            final int rowId = 0;
+            final int cellId = 1;
 
             Row row = sheet.getRow(rowId);
             Cell cell = row.getCell(cellId);
@@ -1507,9 +1508,6 @@ public abstract class BaseTestBugzillaIssues {
 
             // *******************************
             // Second cell of array formula, NOT OK for xlsx files
-            rowId = 1;
-            cellId = 1;
-
             row = sheet.getRow(rowId);
             cell = row.getCell(cellId);
             assertEquals("A1", cell.getCellFormula());

poi/src/test/java/org/apache/poi/ss/usermodel/BaseTestSheet.java

@@ -17,7 +17,6 @@
 
 package org.apache.poi.ss.usermodel;
 
-import static org.apache.poi.POITestCase.assertBetween;
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
@@ -50,8 +49,7 @@ import org.junit.jupiter.api.Test;
 
 /**
  * Common superclass for testing {@link org.apache.poi.hssf.usermodel.HSSFCell},
- * {@link org.apache.poi.xssf.usermodel.XSSFCell} and
- * {@link org.apache.poi.xssf.streaming.SXSSFCell}
+ * XSSFCell and SXSSFCell
  */
 public abstract class BaseTestSheet {
     private static final int ROW_COUNT = 40000;
@@ -430,7 +428,7 @@ public abstract class BaseTestSheet {
             assertCollectionEquals(mergedRegions.values(), sheet.getMergedRegions());
 
             Collection<Integer> removed = Arrays.asList(0, 2, 3, 6, 8);
-            mergedRegions.keySet().removeAll(removed);
+            removed.forEach(mergedRegions.keySet()::remove);
             sheet.removeMergedRegions(removed);
             assertCollectionEquals(mergedRegions.values(), sheet.getMergedRegions());
         }
@@ -1364,4 +1362,9 @@ public abstract class BaseTestSheet {
             assertBetween("Date column width", s.getColumnWidth(1), 4750, 7300);
         }
     }
+
+    private static void assertBetween(String message, int value, int min, int max) {
+        assertTrue(min <= value, message + ": " + value + " is less than the minimum value of " + min);
+        assertTrue(value <= max, message + ": " + value + " is greater than the maximum value of " + max);
+    }
 }

poi/src/test/java/org/apache/poi/ss/usermodel/BaseTestWorkbook.java

@@ -724,7 +724,7 @@ public abstract class BaseTestWorkbook {
     }
 
     @Test
-    void changeSheetNameWithSharedFormulas() throws IOException {
+    protected void changeSheetNameWithSharedFormulas() throws IOException {
         String sampleFile = "shared_formulas.xls" + (getClass().getName().contains("xssf") ? "x" : "");
 
         try (Workbook wb = _testDataProvider.openSampleWorkbook(sampleFile)) {