6806226: Signed integer overflow in growable array code causes JVM crash Summary: Workaround the overflow by doing the intermediate calculations in an unsigned variable. Reviewed-by: ysr, jcoomes

6804746: G1: guarantee(variance() > -1.0,"variance should be >= 0") (due to evacuation failure) Summary: Under certain circumstances (evacuation failure) the pause time is not communicated to the policy and, as a result, the pause time field is not initialized properly. Reviewed-by: jmasa