diff --git a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/RepeatRule.java b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/RepeatRule.java
index 8636f2a..cc1d8d3 100644
--- a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/RepeatRule.java
+++ b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/RepeatRule.java
@@ -78,7 +78,7 @@
  */
 public class RepeatRule implements TestRule {
 
-	private static Logger LOG = Logger
+	private static final Logger LOG = Logger
 			.getLogger(RepeatRule.class.getName());
 
 	/**
diff --git a/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/LfsProtocolServlet.java b/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/LfsProtocolServlet.java
index c7f55dd..e29783e 100644
--- a/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/LfsProtocolServlet.java
+++ b/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/LfsProtocolServlet.java
@@ -93,7 +93,7 @@
  * @since 4.3
  */
 public abstract class LfsProtocolServlet extends HttpServlet {
-	private static Logger LOG = LoggerFactory
+	private static final Logger LOG = LoggerFactory
 			.getLogger(LfsProtocolServlet.class);
 
 	private static final long serialVersionUID = 1L;
diff --git a/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/fs/ObjectDownloadListener.java b/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/fs/ObjectDownloadListener.java
index 06a7726..e65e603 100644
--- a/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/fs/ObjectDownloadListener.java
+++ b/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/fs/ObjectDownloadListener.java
@@ -67,7 +67,7 @@
  */
 public class ObjectDownloadListener implements WriteListener {
 
-	private static Logger LOG = Logger
+	private static final Logger LOG = Logger
 			.getLogger(ObjectDownloadListener.class.getName());
 
 	private final AsyncContext context;
diff --git a/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/fs/ObjectUploadListener.java b/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/fs/ObjectUploadListener.java
index 3bb2899..332e39f 100644
--- a/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/fs/ObjectUploadListener.java
+++ b/org.eclipse.jgit.lfs.server/src/org/eclipse/jgit/lfs/server/fs/ObjectUploadListener.java
@@ -71,7 +71,7 @@
  */
 public class ObjectUploadListener implements ReadListener {
 
-	private static Logger LOG = Logger
+	private static final Logger LOG = Logger
 			.getLogger(ObjectUploadListener.class.getName());
 
 	private final AsyncContext context;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCacheCheckout.java b/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCacheCheckout.java
index bbaed37..3502d7a 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCacheCheckout.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCacheCheckout.java
@@ -106,7 +106,8 @@
  * This class handles checking out one or two trees merging with the index.
  */
 public class DirCacheCheckout {
-	private static Logger LOG = LoggerFactory.getLogger(DirCacheCheckout.class);
+	private static final Logger LOG = LoggerFactory
+			.getLogger(DirCacheCheckout.class);
 
 	private static final int MAX_EXCEPTION_TEXT_SIZE = 10 * 1024;
 
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/sha1/SHA1.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/sha1/SHA1.java
index 1ad6602..e6971ee 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/sha1/SHA1.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/sha1/SHA1.java
@@ -78,7 +78,7 @@
  * @since 4.7
  */
 public class SHA1 {
-	private static Logger LOG = LoggerFactory.getLogger(SHA1.class);
+	private static final Logger LOG = LoggerFactory.getLogger(SHA1.class);
 	private static final boolean DETECT_COLLISIONS;
 
 	static {