diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/AutoCRLFInputStream.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/AutoCRLFInputStream.java
index 7c77a2426..98c5477de 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/AutoCRLFInputStream.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/AutoCRLFInputStream.java
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2012, Robin Rosenberg
- * Copyright (C) 2010, Marc Strapetz <marc.strapetz@syntevo.com>
+ * Copyright (C) 2010, 2013 Marc Strapetz <marc.strapetz@syntevo.com>
  * and other copyright owners as documented in the project's IP log.
  *
  * This program and the accompanying materials are made available
@@ -98,40 +98,40 @@ public int read() throws IOException {
 	}
 
 	@Override
-	public int read(byte[] bs, int off, int len) throws IOException {
+	public int read(byte[] bs, final int off, final int len) throws IOException {
 		if (len == 0)
 			return 0;
 
 		if (cnt == -1)
 			return -1;
 
-		final int startOff = off;
+		int i = off;
 		final int end = off + len;
 
-		while (off < end) {
+		while (i < end) {
 			if (ptr == cnt && !fillBuffer())
 				break;
 
 			byte b = buf[ptr++];
 			if (isBinary || b != '\n') {
 				// Logic for binary files ends here
-				bs[off++] = last = b;
+				bs[i++] = last = b;
 				continue;
 			}
 
 			if (b == '\n') {
 				if (last == '\r') {
-					bs[off++] = last = b;
+					bs[i++] = last = b;
 					continue;
 				}
-				bs[off++] = last = '\r';
+				bs[i++] = last = '\r';
 				ptr--;
 			} else
-				bs[off++] = last = b;
+				bs[i++] = last = b;
 		}
-		int n = startOff == off ? -1 : off - startOff;
+		int n = i == off ? -1 : i - off;
 		if (n > 0)
-			last = bs[off - 1];
+			last = bs[i - 1];
 		return n;
 	}
 
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/AutoCRLFOutputStream.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/AutoCRLFOutputStream.java
index 1ce277439..f05da1c73 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/AutoCRLFOutputStream.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/AutoCRLFOutputStream.java
@@ -90,12 +90,13 @@ public void write(byte[] b) throws IOException {
 	}
 
 	@Override
-	public void write(byte[] b, int off, int len) throws IOException {
-		int overflow = buffer(b, off, len);
+	public void write(byte[] b, final int startOff, final int startLen)
+			throws IOException {
+		final int overflow = buffer(b, startOff, startLen);
 		if (overflow < 0)
 			return;
-		off = off + len - overflow;
-		len = overflow;
+		final int off = startOff + startLen - overflow;
+		final int len = overflow;
 		if (len == 0)
 			return;
 		int lastw = off;
@@ -104,7 +105,7 @@ public void write(byte[] b, int off, int len) throws IOException {
 			return;
 		}
 		for (int i = off; i < off + len; ++i) {
-			byte c = b[i];
+			final byte c = b[i];
 			if (c == '\r') {
 				buf = '\r';
 			} else if (c == '\n') {
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/EolCanonicalizingInputStream.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/EolCanonicalizingInputStream.java
index 592183658..f87ab6896 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/EolCanonicalizingInputStream.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/EolCanonicalizingInputStream.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010, Marc Strapetz <marc.strapetz@syntevo.com>
+ * Copyright (C) 2010, 2013 Marc Strapetz <marc.strapetz@syntevo.com>
  * and other copyright owners as documented in the project's IP log.
  *
  * This program and the accompanying materials are made available
@@ -91,17 +91,17 @@ public int read() throws IOException {
 	}
 
 	@Override
-	public int read(byte[] bs, int off, int len) throws IOException {
+	public int read(byte[] bs, final int off, final int len) throws IOException {
 		if (len == 0)
 			return 0;
 
 		if (cnt == -1)
 			return -1;
 
-		final int startOff = off;
+		int i = off;
 		final int end = off + len;
 
-		while (off < end) {
+		while (i < end) {
 			if (ptr == cnt && !fillBuffer()) {
 				break;
 			}
@@ -109,23 +109,23 @@ public int read(byte[] bs, int off, int len) throws IOException {
 			byte b = buf[ptr++];
 			if (isBinary || b != '\r') {
 				// Logic for binary files ends here
-				bs[off++] = b;
+				bs[i++] = b;
 				continue;
 			}
 
 			if (ptr == cnt && !fillBuffer()) {
-				bs[off++] = '\r';
+				bs[i++] = '\r';
 				break;
 			}
 
 			if (buf[ptr] == '\n') {
-				bs[off++] = '\n';
+				bs[i++] = '\n';
 				ptr++;
 			} else
-				bs[off++] = '\r';
+				bs[i++] = '\r';
 		}
 
-		return startOff == off ? -1 : off - startOff;
+		return i == off ? -1 : i - off;
 	}
 
 	@Override
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/TeeInputStream.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/TeeInputStream.java
index 16ed9c6eb..6adadbbb8 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/TeeInputStream.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/TeeInputStream.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010, Google Inc.
+ * Copyright (C) 2010, 2013 Google Inc.
  * and other copyright owners as documented in the project's IP log.
  *
  * This program and the accompanying materials are made available
@@ -89,11 +89,12 @@ public int read() throws IOException {
 	}
 
 	@Override
-	public long skip(long cnt) throws IOException {
+	public long skip(final long count) throws IOException {
 		long skipped = 0;
-		byte[] b = skipBuffer();
+		long cnt = count;
+		final byte[] b = skipBuffer();
 		while (0 < cnt) {
-			int n = src.read(b, 0, (int) Math.min(b.length, cnt));
+			final int n = src.read(b, 0, (int) Math.min(b.length, cnt));
 			if (n <= 0)
 				break;
 			dst.write(b, 0, n);
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/UnionInputStream.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/UnionInputStream.java
index 20dcd4659..0319afd5a 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/UnionInputStream.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/UnionInputStream.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009, Google Inc.
+ * Copyright (C) 2009, 2013 Google Inc.
  * and other copyright owners as documented in the project's IP log.
  *
  * This program and the accompanying materials are made available
@@ -158,17 +158,18 @@ public int available() throws IOException {
 	}
 
 	@Override
-	public long skip(long len) throws IOException {
-		long cnt = 0;
-		while (0 < len) {
+	public long skip(final long count) throws IOException {
+		long skipped = 0;
+		long cnt = count;
+		while (0 < cnt) {
 			final InputStream in = head();
-			final long n = in.skip(len);
+			final long n = in.skip(cnt);
 			if (0 < n) {
-				cnt += n;
-				len -= n;
+				skipped += n;
+				cnt -= n;
 
 			} else if (in == EOF) {
-				return cnt;
+				return skipped;
 
 			} else {
 				// Is this stream at EOF? We can't tell from skip alone.
@@ -178,15 +179,15 @@ public long skip(long len) throws IOException {
 				final int r = in.read();
 				if (r < 0) {
 					pop();
-					if (0 < cnt)
+					if (0 < skipped)
 						break;
 				} else {
-					cnt += 1;
-					len -= 1;
+					skipped += 1;
+					cnt -= 1;
 				}
 			}
 		}
-		return cnt;
+		return skipped;
 	}
 
 	@Override