SPECjvm2008-SOR.large regressions in 10-b31 on SPARC

Both:
   SPECjvm2008-SOR.large-G1
   SPECjvm2008-SOR.large-ParGC
show regressions in 10-b31 on SPARC/Solaris.

• SPECjvm2008-SOR.large-G1 approx 0.5%
• SPECjvm2008-SOR.large-ParGC approx 0.9%

Both regressions hold into subsequent builds, and are behind the release baseline by approximately the regression sizes.

VMswap data indicates the cause is in the JVM.