diff --git a/src/de/diddiz/LogBlock/Consumer.java b/src/de/diddiz/LogBlock/Consumer.java
index dddff07..c8d5e6f 100644
--- a/src/de/diddiz/LogBlock/Consumer.java
+++ b/src/de/diddiz/LogBlock/Consumer.java
@@ -23,11 +23,11 @@ public class Consumer extends TimerTask implements Runnable
 	private final LogBlock logblock;
 	private final Logger log;
 	private final Config config;
-	private LinkedBlockingQueue<BlockRow> bqueue = new LinkedBlockingQueue<BlockRow>();
-	private LinkedBlockingQueue<KillRow> kqueue = new LinkedBlockingQueue<KillRow>();
-	private HashSet<Integer> hiddenplayers = new HashSet<Integer>();
-	private HashMap<Integer, Integer> lastAttackedEntity = new HashMap<Integer, Integer>();
-	private HashMap<Integer, Long> lastAttackTime = new HashMap<Integer, Long>();
+	private final LinkedBlockingQueue<BlockRow> bqueue = new LinkedBlockingQueue<BlockRow>();
+	private final LinkedBlockingQueue<KillRow> kqueue = new LinkedBlockingQueue<KillRow>();
+	private final HashSet<Integer> hiddenplayers = new HashSet<Integer>();
+	private final HashMap<Integer, Integer> lastAttackedEntity = new HashMap<Integer, Integer>();
+	private final HashMap<Integer, Long> lastAttackTime = new HashMap<Integer, Long>();
  	
 
 	Consumer (LogBlock logblock) {
diff --git a/src/de/diddiz/LogBlock/Rollback.java b/src/de/diddiz/LogBlock/Rollback.java
index 034f369..7768229 100644
--- a/src/de/diddiz/LogBlock/Rollback.java
+++ b/src/de/diddiz/LogBlock/Rollback.java
@@ -112,8 +112,8 @@ public class Rollback implements Runnable
 
 	private class PerformRollback implements Runnable
 	{
-		private LinkedBlockingQueue<Edit> edits;
-		private Rollback rollback;
+		private final LinkedBlockingQueue<Edit> edits;
+		private final Rollback rollback;
 		int successes = 0;
 		int errors = 0;
 		int blacklisteds = 0;
@@ -148,17 +148,17 @@ public class Rollback implements Runnable
 			}
 		}
 	}
-	
+
 	private enum PerformResult {
 		ERROR, SUCCESS, BLACKLISTED, NO_ACTION
 	}
 	
 	private class Edit
 	{
-		int type, replaced;
-		int x, y, z;
-		byte data;
-		World world;
+		final int type, replaced;
+		final int x, y, z;
+		final byte data;
+		final World world;
 
 		Edit(int type, int replaced, byte data, int x, int y, int z, World world) {
 			this.type = type;