Include linux path in jni generation and improve java detection for official jdk's.
Include linux path in jni generation and improve java detection for
official jdk's.

lisitsyn/shogun,lambday/shogun,karlnapf/shogun,geektoni/shogun,shogun-toolbox/shogun,Saurabh7/shogun,sorig/shogun,besser82/shogun,Saurabh7/shogun,lisitsyn/shogun,lambday/shogun,geektoni/shogun,sorig/shogun,karlnapf/shogun,shogun-toolbox/shogun,Saurabh7/shogun,shogun-toolbox/shogun,geektoni/shogun,Saurabh7/shogun,shogun-toolbox/shogun,lisitsyn/shogun,lambday/shogun,lambday/shogun,sorig/shogun,sorig/shogun,Saurabh7/shogun,besser82/shogun,Saurabh7/shogun,lisitsyn/shogun,geektoni/shogun,lambday/shogun,shogun-toolbox/shogun,Saurabh7/shogun,karlnapf/shogun,karlnapf/shogun,sorig/shogun,besser82/shogun,besser82/shogun,lisitsyn/shogun,karlnapf/shogun,geektoni/shogun,sorig/shogun,Saurabh7/shogun,karlnapf/shogun,lisitsyn/shogun,besser82/shogun,besser82/shogun,shogun-toolbox/shogun,lambday/shogun,Saurabh7/shogun,geektoni/shogun