After merging with jdk10/hs ValueOops is failing with random crashes in testBytecodes() inside either vbox or vunbox interpreter implementation.

"-Xint -XX:+UseG1GC"

Running with more GC iterations ie. 1st arg "ValueOops 1000", typically triggers the bug sooner or later.

Review of the recent GC changes doesn't explain the crash. Suspect it is an existing bug, but have failed to reproduce previous to merge.