[12] RFR (T): 8146090: java/lang/ref/ReachabilityFenceTest.java fails with -XX:+DeoptimizeALot

Vladimir Ivanov vladimir.x.ivanov at oracle.com
Tue Dec 4 01:06:59 UTC 2018


The test doesn't work with -XX:+DeoptimizeALot: the test expects 
execution to continue in generated code after System.gc() call, but JVM 
constantly deoptimizes it at that point in -XX:+DeoptimizeALot mode, so 
execution continues in interpreter and it breaks the invariant the test 

The fix is to disable executing the test with -XX:+DeoptimizeALot.

Testing: manually verified that the test isn't executed when 
-XX:+DeoptimizeALot is specified.

Best regards,
Vladimir Ivanov

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