$ java -jar jcstress-samples/target/jcstress.jar -t JMMSample_01
...
----- [FAILED] Unlocking Whitebox API for online de-optimization: selected methods
Exception in thread "main" java.lang.UnsatisfiedLinkError: sun.hotspot.WhiteBox.deoptimizeMethod0(Ljava/lang/reflect/Executable;Z)I
at sun.hotspot.WhiteBox.deoptimizeMethod0(Native Method)
at sun.hotspot.WhiteBox.deoptimizeMethod(WhiteBox.java:43)
at sun.hotspot.WhiteBox.deoptimizeMethod(WhiteBox.java:38)
at org.openjdk.jcstress.vm.WhiteBoxSupport.initAndTest(WhiteBoxSupport.java:71)
at org.openjdk.jcstress.vm.WhiteBoxSupport.init(WhiteBoxSupport.java:60)
at org.openjdk.jcstress.vm.DeoptMethodTestMain.main(DeoptMethodTestMain.java:30)