MegaFlow: Kernel flows are now wildcarded

Change-Id: I045a74c35977881537b97f93d286657ad4b28f08
Signed-off-by: Duarte Nunes <duarte@midokura.com>
Megaflow: Removes NotIPv4Action

Change-Id: I3cb863593b348e09945dc83d76d24934fdbeefec
Signed-off-by: Duarte Nunes <duarte@midokura.com>
Adds warnings to Java compilation

Change-Id: I64878ff604cecbfe9eb40693279f12551acb6dcd
Signed-off-by: Duarte Nunes <duarte@midokura.com>
Fixes NPE when querying the flow actions cache

This patch covers a code path where we were not adding a necessary
entry to the actions cache.

Change-Id: I69aed611b90877de30a883e80d9b51023302e92e
Signed-off-by: Duarte Nunes <duarte@midokura.com>