hotspot/test/serviceability/tmtools/jstack/SpreadLockTest.java

java.lang.RuntimeException: One of thread stack trace is null in the first jstack output : null, utils.ThreadStack@bfd6fe, null
at SpreadLockTest.analyse(SpreadLockTest.java:143)
at SpreadLockTest.doTest(SpreadLockTest.java:114)
at SpreadLockTest.main(SpreadLockTest.java:89)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:563)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:844)