SonarQube fixes

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1793727 13f79535-47bb-0310-9956-ffa450edef68

src/examples/src/org/apache/poi/hpsf/examples/CopyCompare.java

@@ -401,11 +401,11 @@ public class CopyCompare
                          final String name,
                          final DocumentInputStream stream)
         throws IOException {
-            final DirectoryEntry de = getPath(poiFs, path);
-            if (stream == null && name == null) {
+            if (stream == null || name == null) {
                 // Empty directory
                 return;
             }
+            final DirectoryEntry de = getPath(poiFs, path);
             final ByteArrayOutputStream out = new ByteArrayOutputStream();
             int c;
             while ((c = stream.read()) != -1) {

src/java/org/apache/poi/ddf/EscherArrayProperty.java

@@ -47,7 +47,7 @@ public final class EscherArrayProperty extends EscherComplexProperty implements
 
     public EscherArrayProperty(short id, byte[] complexData) {
         super(id, checkComplexData(complexData));
-        emptyComplexPart = complexData.length == 0;
+        emptyComplexPart = (complexData == null || complexData.length == 0);
     }
 
     public EscherArrayProperty(short propertyNumber, boolean isBlipId, byte[] complexData) {

src/scratchpad/src/org/apache/poi/hslf/model/ActiveXShape.java

@@ -128,27 +128,29 @@ public final class ActiveXShape extends HSLFPictureShape {
      */
     public ExControl getExControl(){
         int idx = getControlIndex();
-        ExControl ctrl = null;
         Document doc = getSheet().getSlideShow().getDocumentRecord();
         ExObjList lst = (ExObjList)doc.findFirstOfType(RecordTypes.ExObjList.typeID);
-        if(lst != null){
-            Record[] ch = lst.getChildRecords();
-            for (int i = 0; i < ch.length; i++) {
-                if(ch[i] instanceof ExControl){
-                    ExControl c = (ExControl)ch[i];
-                    if(c.getExOleObjAtom().getObjID() == idx){
-                        ctrl = c;
-                        break;
-                    }
+        if (lst == null) {
+            return null;
+        }
+        
+        for (Record ch : lst.getChildRecords()) {
+            if(ch instanceof ExControl){
+                ExControl c = (ExControl)ch;
+                if(c.getExOleObjAtom().getObjID() == idx){
+                    return c;
                 }
             }
         }
-        return ctrl;
+        return null;
     }
 
     @Override
     protected void afterInsert(HSLFSheet sheet){
         ExControl ctrl = getExControl();
+        if (ctrl == null) {
+            throw new NullPointerException("ExControl is not defined");
+        }
         ctrl.getExControlAtom().setSlideId(sheet._getSheetNumber());
 
         String name = ctrl.getProgId() + "-" + getControlIndex() + '\u0000';

src/scratchpad/src/org/apache/poi/hslf/model/OLEShape.java

@@ -185,7 +185,8 @@ public final class OLEShape extends HSLFPictureShape {
      * @return the instance name of the embedded object
      */
     public String getInstanceName(){
-        return getExEmbed().getMenuName();
+        ExEmbed ee = getExEmbed();
+        return (ee == null) ? null : ee.getMenuName();
     }
 
     /**
@@ -195,7 +196,8 @@ public final class OLEShape extends HSLFPictureShape {
      * @return the full name of the embedded object
      */
     public String getFullName(){
-        return getExEmbed().getClipboardName();
+        ExEmbed ee = getExEmbed();
+        return (ee == null) ? null : ee.getClipboardName();
     }
 
     /**
@@ -206,6 +208,7 @@ public final class OLEShape extends HSLFPictureShape {
      * @return the ProgID
      */
     public String getProgID(){
-        return getExEmbed().getProgId();
+        ExEmbed ee = getExEmbed();
+        return (ee == null) ? null : ee.getProgId();
     }
 }

src/scratchpad/src/org/apache/poi/hslf/record/PPDrawing.java

@@ -360,13 +360,16 @@ public final class PPDrawing extends RecordAtom {
 	 * @return EscherDgRecord
 	 */
 	public EscherDgRecord getEscherDgRecord(){
-		if(dg == null){
-			for(EscherRecord r : getDgContainer().getChildRecords()){
-				if(r instanceof EscherDgRecord){
-					dg = (EscherDgRecord)r;
-					break;
-				}
-			}
+		if (dg == null) {
+		    EscherContainerRecord dgr = getDgContainer();
+		    if (dgr != null) {
+    			for(EscherRecord r : dgr.getChildRecords()){
+    				if(r instanceof EscherDgRecord){
+    					dg = (EscherDgRecord)r;
+    					break;
+    				}
+    			}
+		    }
 		}
 		return dg;
 	}

src/scratchpad/src/org/apache/poi/hslf/usermodel/HSLFFill.java

@@ -372,7 +372,9 @@ public final class HSLFFill {
         if(p != null) {
             int idx = p.getPropertyValue();
             EscherBSERecord bse = getEscherBSERecord(idx);
-            bse.setRef(bse.getRef() + 1);
+            if (bse != null) {
+                bse.setRef(bse.getRef() + 1);
+            }
         }
     }
 
@@ -521,7 +523,9 @@ public final class HSLFFill {
         HSLFShape.setEscherProperty(opt, (short)(EscherProperties.FILL__PATTERNTEXTURE + 0x4000), (data == null ? 0 : data.getIndex()));
         if(data != null && shape.getSheet() != null) {
             EscherBSERecord bse = getEscherBSERecord(data.getIndex());
-            bse.setRef(bse.getRef() + 1);
+            if (bse != null) {
+                bse.setRef(bse.getRef() + 1);
+            }
         }
     }