Li-Plugin : Flow installation fails on OVS 2.4 switch

I am testing openflowpliugin-li plugin with net-virt project code and when i connect OVS 2.4 switch to the controller, flow installation fails and i see series of IllegalArgumentException "java.lang.IllegalArgumentException: Metadata not available for modification NodeModification"

Here is the full karaf log
https://gist.githubusercontent.com/vishnoianil/df4efe1b63bd4817bcf732261a5abcd1/raw/774b44f0a6fab305414aebe409c8a098e5809e3a/karaf.log

I am using the latest master and rebased luis's patch to switch the plugin. Here is my git log history

openflowplugin$ git log
commit 7464aa6aa13a8ef90a722829bec9f250432cfa33
Author: Jozef Bacigal <jbacigal@cisco.com>
Date: Wed May 4 14:43:07 2016 +0200

Bug-5523 Lifecycle conductor changes

• changed lifecycle conductor from static thread safe singleton
  to singleton created in OpenFlowPluginImpl as are managers defined

Change-Id: I1bd21b2e3a842ce3152882a746a2b9efd3f2cb83
Signed-off-by: Jozef Bacigal <jbacigal@cisco.com>
Signed-off-by: Tomas Slusny <tomas.slusny@pantheon.sk>

commit be60232071d79bcb2f237d95f65f62bb5c83d0ce
Author: Jozef Bacigal <jbacigal@cisco.com>
Date: Tue Apr 26 14:49:03 2016 +0200

Bug-5523 CloseConnection changes

• dependency of deviceContext removed from starting
• lifecycle conductor thread safe now
• role manager was not removing context from map
• test update

Change-Id: Iadafdfb8f377326bfb76e9163ad66656b16c15f3
Signed-off-by: Jozef Bacigal <jbacigal@cisco.com>

commit 0ab4f7b6c3b033de6810dbfafc1907b8c3c724a6
Author: Jozef Bacigal <jbacigal@cisco.com>
Date: Fri Apr 15 13:13:57 2016 +0200

Bug-5523 RoleManager changes

• all functionality moved to role manager
• role context hold only information about status
• life cycle conductor defined as listener to role change
• able to register listener to start/stop master services
• timer for initialization device disabled
• added thrown exception when not able to write to transaction
• added junit tests

Change-Id: I741cde5c8161dde8c45f27c6a2e1f99617a613bf
Signed-off-by: Jozef Bacigal <jbacigal@cisco.com>