SPECjvm2008-MonteCarlo with G1 has regressed in JDK 11 (compared to JDK 10) by more than 6% on Linux. There was a large regression in b12 that was mostly recovered in b13 but the score regressed again in b15. On Windows, there was also a large regression in b12 that was recovered in b13 and the scores have since remained steady on that platform.