Avoid possible NPE found via CommonCrawl files

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1678811 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/hssf/usermodel/HSSFShapeFactory.java

@@ -29,13 +29,6 @@ import java.util.Map;
  * Factory class for producing Excel Shapes from Escher records
  */
 public class HSSFShapeFactory {
-
-    private final static short       OBJECT_TYPE_LINE               = 1;
-    private final static short       OBJECT_TYPE_RECTANGLE          = 2;
-    private final static short       OBJECT_TYPE_OVAL               = 3;
-    private final static short       OBJECT_TYPE_ARC                = 4;
-    private final static short       OBJECT_TYPE_PICTURE            = 8;
-
     /**
      * build shape tree from escher container
      * @param container root escher container from which escher records must be taken
@@ -81,7 +74,7 @@ public class HSSFShapeFactory {
                 return;
             }
             CommonObjectDataSubRecord cmo = (CommonObjectDataSubRecord) objRecord.getSubRecords().get(0);
-            HSSFShape shape;
+            final HSSFShape shape;
             switch (cmo.getObjectType()) {
                 case CommonObjectDataSubRecord.OBJECT_TYPE_PICTURE:
                     shape = new HSSFPicture(container, objRecord);
@@ -97,11 +90,15 @@ public class HSSFShapeFactory {
                     break;
                 case CommonObjectDataSubRecord.OBJECT_TYPE_MICROSOFT_OFFICE_DRAWING:
                     EscherOptRecord optRecord = container.getChildById(EscherOptRecord.RECORD_ID);
-                    EscherProperty property = optRecord.lookup(EscherProperties.GEOMETRY__VERTICES);
-                    if (null != property) {
-                        shape = new HSSFPolygon(container, objRecord, txtRecord);
+                    if(optRecord == null) {
+                    	shape = new HSSFSimpleShape(container, objRecord, txtRecord);
                     } else {
-                        shape = new HSSFSimpleShape(container, objRecord, txtRecord);
+                        EscherProperty property = optRecord.lookup(EscherProperties.GEOMETRY__VERTICES);
+                        if (null != property) {
+                            shape = new HSSFPolygon(container, objRecord, txtRecord);
+                        } else {
+                            shape = new HSSFSimpleShape(container, objRecord, txtRecord);
+                        }
                     }
                     break;
                 case CommonObjectDataSubRecord.OBJECT_TYPE_TEXT:

src/testcases/org/apache/poi/hssf/extractor/TestExcelExtractor.java

@@ -363,4 +363,10 @@ public final class TestExcelExtractor extends TestCase {
 
 		assertTrue(text.contains("ZIP"));
 	}
+
+	public void testNullPointerException() {
+		ExcelExtractor extractor = createExtractor("ar.org.apsme.www_Form%20Inscripcion%20Curso%20NO%20Socios.xls");
+		assertNotNull(extractor);
+		assertNotNull(extractor.getText());
+	}
 }

src/testcases/org/apache/poi/hssf/model/TestShapes.java

@@ -20,6 +20,7 @@
 package org.apache.poi.hssf.model;
 
 import junit.framework.TestCase;
+
 import org.apache.poi.hssf.record.CommonObjectDataSubRecord;
 import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
 import org.apache.poi.hssf.usermodel.HSSFComment;
@@ -37,7 +38,8 @@ public final class TestShapes extends TestCase {
      *
      * See Bug 51332
      */
-    public void testShapeId(){
+    @SuppressWarnings("deprecation")
+	public void testShapeId(){
 
         HSSFClientAnchor anchor = new HSSFClientAnchor();
         AbstractShape shape;