Currently, gtests do not build on AIX due to compile errors:

"/sapmnt/sapjvm_work/d031900/openjdk/jdk9-hs/source/test/fmw/gtest/include/gtest/gtest.h", line 1448.7: 1540-0207 (S) No common type found for operands with type "long" and "Integer *".
"/sapmnt/sapjvm_work/d031900/openjdk/jdk9-hs/source/test/fmw/gtest/include/gtest/gtest.h", line 1438.17: 1540-0700 (I) The previous message was produced while processing "testing::internal::CmpHelperEQ<long,Integer *>(const char *, const char *, const long &, Integer * c
onst &)".
"/sapmnt/sapjvm_work/d031900/openjdk/jdk9-hs/source/test/fmw/gtest/include/gtest/gtest.h", line 1484.12: 1540-0700 (I) The previous message was produced while processing "testing::internal::EqHelper<0>::Compare<long,Integer *>(const char *, const char *, const long &, In
teger * const &)".

Build stops at this point.