diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectoryPackParser.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectoryPackParser.java
index a186b8147..1c076ee09 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectoryPackParser.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectoryPackParser.java
@@ -366,11 +366,10 @@ public class ObjectDirectoryPackParser extends PackParser {
 
 	@Override
 	protected void onEndThinPack() throws IOException {
-		final byte[] tailHash = this.tailDigest.digest();
 		final byte[] buf = buffer();
 
 		final MessageDigest origDigest = Constants.newMessageDigest();
-		final MessageDigest tailDigest = Constants.newMessageDigest();
+		final MessageDigest tailDigest2 = Constants.newMessageDigest();
 		final MessageDigest packDigest = Constants.newMessageDigest();
 
 		long origRemaining = origEnd;
@@ -393,15 +392,15 @@ public class ObjectDirectoryPackParser extends PackParser {
 				origDigest.update(buf, 0, origCnt);
 				origRemaining -= origCnt;
 				if (origRemaining == 0)
-					tailDigest.update(buf, origCnt, n - origCnt);
+					tailDigest2.update(buf, origCnt, n - origCnt);
 			} else
-				tailDigest.update(buf, 0, n);
+				tailDigest2.update(buf, 0, n);
 
 			packDigest.update(buf, 0, n);
 		}
 
-		if (!Arrays.equals(origDigest.digest(), origHash)
-				|| !Arrays.equals(tailDigest.digest(), tailHash))
+		if (!Arrays.equals(origDigest.digest(), origHash) || !Arrays
+				.equals(tailDigest2.digest(), this.tailDigest.digest()))
 			throw new IOException(
 					JGitText.get().packCorruptedWhileWritingToFilesystem);
 
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java b/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java
index c60590dda..753277dd3 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java
@@ -810,9 +810,9 @@ public class UploadPack {
 			adv.advertiseCapability(OPTION_ALLOW_TIP_SHA1_IN_WANT);
 		adv.advertiseCapability(OPTION_AGENT, UserAgent.get());
 		adv.setDerefTags(true);
-		Map<String, Ref> refs = getAdvertisedOrDefaultRefs();
-		findSymrefs(adv, refs);
-		advertised = adv.send(refs);
+		Map<String, Ref> advertisedOrDefaultRefs = getAdvertisedOrDefaultRefs();
+		findSymrefs(adv, advertisedOrDefaultRefs);
+		advertised = adv.send(advertisedOrDefaultRefs);
 		if (adv.isEmpty())
 			adv.advertiseId(ObjectId.zeroId(), "capabilities^{}"); //$NON-NLS-1$
 		adv.end();
@@ -1467,7 +1467,7 @@ public class UploadPack {
 			pckOut.end();
 	}
 
-	private void findSymrefs(
+	private static void findSymrefs(
 			final RefAdvertiser adv, final Map<String, Ref> refs) {
 		Ref head = refs.get(Constants.HEAD);
 		if (head != null && head.isSymbolic()) {