Index: trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/DefaultSymbolComparator.java
===================================================================
--- trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/DefaultSymbolComparator.java	(revision 1186)
+++ trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/DefaultSymbolComparator.java	(revision 1188)
@@ -26,7 +26,4 @@
 public class DefaultSymbolComparator<T> implements SymbolComparator<T> {
 
-    /**  */
-    private static final long serialVersionUID = 1L;
-
     /* (non-Javadoc)
      * @see de.ugoe.cs.autoquest.tasktrees.temporalrelation.SymbolComparator#equals(java.lang.Object, java.lang.Object)
Index: trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/SymbolComparator.java
===================================================================
--- trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/SymbolComparator.java	(revision 1186)
+++ trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/SymbolComparator.java	(revision 1188)
@@ -15,6 +15,4 @@
 package de.ugoe.cs.autoquest.usageprofiles;
 
-import java.io.Serializable;
-
 /**
  * <p>
@@ -24,5 +22,5 @@
  * @author Patrick Harms
  */
-public interface SymbolComparator<T> extends Serializable {
+public interface SymbolComparator<T> {
     
     /**
Index: trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/Trie.java
===================================================================
--- trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/Trie.java	(revision 1186)
+++ trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/Trie.java	(revision 1188)
@@ -69,5 +69,5 @@
      * </p>
      */
-    private SymbolComparator<T> comparator;
+    private transient SymbolComparator<T> comparator;
 
     /**
Index: trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/TrieNode.java
===================================================================
--- trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/TrieNode.java	(revision 1186)
+++ trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/TrieNode.java	(revision 1188)
@@ -74,5 +74,5 @@
      * </p>
      */
-    private SymbolComparator<T> comparator;
+    private transient SymbolComparator<T> comparator;
 
     /**