Don't unnecessarily explicitly call CorruptObjectException#initCause

CorruptObjectException has a constructor that takes Throwable and
calls initCause with it.  Use that instead of instantiating the
exception and explicitly calling initCause.

Change-Id: I1f2747d6c4cc5249e93401b9787eb4ceb50cb995
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/dfs/DfsInserter.java

@@ -616,13 +616,12 @@ public class DfsInserter extends ObjectInserter {
 			try {
 				return packOut.inflate(ctx, zpos, sz);
 			} catch (DataFormatException dfe) {
-				CorruptObjectException coe = new CorruptObjectException(
+				throw new CorruptObjectException(
 						MessageFormat.format(
 								JGitText.get().objectAtHasBadZlibStream,
 								Long.valueOf(obj.getOffset()),
-								packDsc.getFileName(PackExt.PACK)));
-				coe.initCause(dfe);
-				throw coe;
+								packDsc.getFileName(PackExt.PACK)),
+						dfe);
 			}
 		}
 

org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/dfs/DfsPackFile.java

@@ -657,8 +657,8 @@ public final class DfsPackFile extends BlockBasedFile {
 			CorruptObjectException corruptObject = new CorruptObjectException(
 					MessageFormat.format(
 							JGitText.get().objectAtHasBadZlibStream,
-							Long.valueOf(src.offset), getFileName()));
-			corruptObject.initCause(dataFormat);
+							Long.valueOf(src.offset), getFileName()),
+					dataFormat);
 
 			throw new StoredObjectRepresentationNotAvailableException(src,
 					corruptObject);
@@ -866,12 +866,11 @@ public final class DfsPackFile extends BlockBasedFile {
 			return new ObjectLoader.SmallObject(type, data);
 
 		} catch (DataFormatException dfe) {
-			CorruptObjectException coe = new CorruptObjectException(
+			throw new CorruptObjectException(
 					MessageFormat.format(
 							JGitText.get().objectAtHasBadZlibStream, Long.valueOf(pos),
-							getFileName()));
-			coe.initCause(dfe);
-			throw coe;
+							getFileName()),
+					dfe);
 		}
 	}
 
@@ -1014,12 +1013,11 @@ public final class DfsPackFile extends BlockBasedFile {
 		try {
 			return BinaryDelta.getResultSize(getDeltaHeader(ctx, deltaAt));
 		} catch (DataFormatException dfe) {
-			CorruptObjectException coe = new CorruptObjectException(
+			throw new CorruptObjectException(
 					MessageFormat.format(
 							JGitText.get().objectAtHasBadZlibStream, Long.valueOf(pos),
-							getFileName()));
-			coe.initCause(dfe);
-			throw coe;
+							getFileName()),
+					dfe);
 		}
 	}
 

org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackFile.java

@@ -515,8 +515,8 @@ public class PackFile implements Iterable<PackIndex.MutableEntry> {
 			CorruptObjectException corruptObject = new CorruptObjectException(
 					MessageFormat.format(
 							JGitText.get().objectAtHasBadZlibStream,
-							Long.valueOf(src.offset), getPackFile()));
-			corruptObject.initCause(dataFormat);
+							Long.valueOf(src.offset), getPackFile()),
+					dataFormat);
 
 			throw new StoredObjectRepresentationNotAvailableException(src,
 					corruptObject);
@@ -895,12 +895,11 @@ public class PackFile implements Iterable<PackIndex.MutableEntry> {
 			return new ObjectLoader.SmallObject(type, data);
 
 		} catch (DataFormatException dfe) {
-			CorruptObjectException coe = new CorruptObjectException(
+			throw new CorruptObjectException(
 					MessageFormat.format(
 							JGitText.get().objectAtHasBadZlibStream,
-							Long.valueOf(pos), getPackFile()));
-			coe.initCause(dfe);
-			throw coe;
+							Long.valueOf(pos), getPackFile()),
+					dfe);
 		}
 	}
 

org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackInserter.java

@@ -582,13 +582,12 @@ class PackInserter extends ObjectInserter {
 			try {
 				return packOut.inflate(zpos, sz);
 			} catch (DataFormatException dfe) {
-				CorruptObjectException coe = new CorruptObjectException(
+				throw new CorruptObjectException(
 						MessageFormat.format(
 								JGitText.get().objectAtHasBadZlibStream,
 								Long.valueOf(obj.getOffset()),
-								tmpPack.getAbsolutePath()));
-				coe.initCause(dfe);
-				throw coe;
+								tmpPack.getAbsolutePath()),
+						dfe);
 			}
 		}