java_loxi: big refactoring and clean-up
diff --git a/java_gen/pre-written/src/main/java/org/openflow/protocol/OFMessage.java b/java_gen/pre-written/src/main/java/org/openflow/protocol/OFMessage.java
index 4f31741..c1e4456 100644
--- a/java_gen/pre-written/src/main/java/org/openflow/protocol/OFMessage.java
+++ b/java_gen/pre-written/src/main/java/org/openflow/protocol/OFMessage.java
@@ -1,13 +1,13 @@
 package org.openflow.protocol;
 
-import org.openflow.types.OFType;
-
 public interface OFMessage {
     int getXid();
 
-    boolean isXidSet();
-
     OFType getType();
 
     OFVersion getVersion();
+
+    interface Builder {
+
+    }
 }