prio 12u4, Solaris Studio (SS) generated a warning if a non-POD object is passed thru ellipsis(varargs), to avoid warning google test was updated[1] to disable null detection facility. SS 12u4 and 12u5(beta) do not generate warnings in such cases, so google test fmw can be update to enable null detection if SS version is not less than 12u4.

[1] https://github.com/google/googletest/issues/233