increase epsilon for AlphaComp sanity test for integer input(cherry picked from commit 9e69e2a07a9798d75a0949ab2b4ad063dd84e8f2)
temporary disable perf test for StereoBeliefPropagation(cherry picked from commit eb247d826f04673a23e4d050ee5cf0395bde82c2)
Dead code removed as this cannot be null in Java.
(cherry picked from commit dbe7634286d405161adb30677aa4d07cc17e0de2)