We need changes in the makefiles to update the official compiler version so that use of S12u3 doesn't produce warnings.

make/solaris/makefiles/sparcWorks.make

# Pick which compiler is validated
ifeq ($(JRE_RELEASE_VER),1.6.0)
  # Validated compiler for JDK6 is SS11 (5.8)
  VALIDATED_COMPILER_REVS := 5.8
  VALIDATED_CC_COMPILER_REVS := 5.8
else
  # Validated compiler for JDK7 is SS12 update 1 + patches (5.10)
  VALIDATED_COMPILER_REVS := 5.10
  VALIDATED_CC_COMPILER_REVS := 5.10
endif


Of course now we don't have hotspot express we can scrap the entries for JDK 6 and 7.