Index: trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/temporalrelation/TaskInstanceTrie.java
===================================================================
--- trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/temporalrelation/TaskInstanceTrie.java	(revision 1256)
+++ trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/temporalrelation/TaskInstanceTrie.java	(revision 1267)
@@ -95,4 +95,20 @@
     }
     
+    /* (non-Javadoc)
+     * @see de.ugoe.cs.autoquest.usageprofiles.Trie#equals(java.lang.Object)
+     */
+    @Override
+    public boolean equals(Object other) {
+        if (this == other) {
+            return true;
+        }
+        else if (other instanceof TaskInstanceTrie) {
+            return super.equals(other);
+        }
+        else {
+            return false;
+        }
+    }
+
     /**
      * 
@@ -163,5 +179,5 @@
      * @author Patrick Harms
      */
-    private class MaxSequenceCountFinder implements TrieProcessor<ITaskInstance> {
+    private static class MaxSequenceCountFinder implements TrieProcessor<ITaskInstance> {
         
         /**