java_gen: make table_id ZERO the default for most flow_mods
diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/TableId.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/TableId.java
index ebb1966..698bc8e 100644
--- a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/TableId.java
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/types/TableId.java
@@ -14,7 +14,9 @@
     private static final short ALL_VAL = 0x00FF;
     private static final short NONE_VAL = 0x0000;
     public static final TableId NONE = new TableId(NONE_VAL);
+
     public static final TableId ALL = new TableId(ALL_VAL);
+    public static final TableId ZERO = NONE;
 
     private final short id;