java_gen: add OFRequest
diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/OFRequest.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/OFRequest.java
new file mode 100644
index 0000000..6666943
--- /dev/null
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/OFRequest.java
@@ -0,0 +1,5 @@
+package org.projectfloodlight.openflow.protocol;
+
+/** Type safety interface. Enables type safe combinations of requests and replies */
+public interface OFRequest<REPLY extends OFMessage> extends OFMessage {
+}