Bug 47261 - SlideShow.removeSlide makes PPT corrupted

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1648458 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -175,6 +175,10 @@ public final class Document extends PositionDependentRecordContainer
 		// The new SlideListWithText should go in
 		//  just before the EndDocumentRecord
 		Record endDoc = _children[_children.length - 1];
+		if(endDoc.getRecordType() == RecordTypes.RoundTripCustomTableStyles12Atom.typeID) {
+		    // last record can optionally be a RoundTripCustomTableStyles12Atom
+		    endDoc = _children[_children.length - 2];
+		}
 		if(endDoc.getRecordType() != RecordTypes.EndDocument.typeID) {
 			throw new IllegalStateException("The last child record of a Document should be EndDocument, but it was " + endDoc);
 		}

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

@@ -67,6 +67,7 @@ public final class RecordTypes {
     public static final Type NamedShow = new Type(1041,null);
     public static final Type NamedShowSlides = new Type(1042,null);
     public static final Type SheetProperties = new Type(1044,null);
+    public static final Type RoundTripCustomTableStyles12Atom = new Type(1064,null);
     public static final Type List = new Type(2000,null);
     public static final Type FontCollection = new Type(2005,FontCollection.class);
     public static final Type BookmarkCollection = new Type(2019,null);

src/scratchpad/testcases/org/apache/poi/hslf/usermodel/TestBugs.java

@@ -21,6 +21,7 @@ import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 
+import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
@@ -595,4 +596,18 @@ public final class TestBugs {
             inputStream.close();
         }
     }
+    
+    @Test
+    public void bug47261() throws Exception {
+        InputStream inputStream = new FileInputStream(_slTests.getFile("bug47261.ppt"));
+        try {
+            SlideShow slideShow = new SlideShow(inputStream);
+            slideShow.removeSlide(0);
+            slideShow.createSlide();
+            ByteArrayOutputStream bos = new ByteArrayOutputStream();
+            slideShow.write(bos);
+        } finally {
+            inputStream.close();
+        }
+    }
 }