Has anyone come across this:
oslevel -s
7200-05-05-2246

/opt/ibm/ibm-semeru-certified-11-jre/bin/java -version
Illegal instruction

 lslpp -L | grep -Ei 'libc|xlc'
  bos.rte.libc             7.2.5.200    A     F    libc Library
  bos.rte.libcfg             7.2.5.0    A     F    libcfg Library
  bos.rte.libcur           7.2.5.100    A     F    libcurses Library
  libc++.rte               16.1.0.10    A     F    IBM XL C++ Runtime for AIX 7.1
  xlC.aix61.rte            16.1.0.10    C     F    IBM XL C++ Runtime for AIX 6.1
  xlC.cpp                    9.0.0.0    C     F    C for AIX Preprocessor
  xlC.msg.en_US.cpp          9.0.0.0    C     F    C for AIX Preprocessor
  xlC.msg.en_US.rte        16.1.0.10    C     F    IBM XL C++ Runtime
  xlC.rte                  16.1.0.10    C     F    IBM XL C++ Runtime for AIX
  xlC.sup.aix50.rte          9.0.0.1    C     F    XL C/C++ Runtime for AIX 5.2

What type of hardware or LPAR CPU compatibility mode you're running on?

It may be due to Stack Execution Disable. Try:
# sedmgr -c exempt /opt/ibm/ibm-semeru-certified-11-jre/bin/java

Thank you.  This seemed to do the trick!

Thank you ;)