Testing https://github.com/openjdk/jdk/pull/2200 reveals this failure in java/util/concurrent/locks/Lock/TimedAcquireLeak.java:

java.lang.Exception: Stack trace
at java.base/java.lang.Thread.dumpStack(Thread.java:1377)
at TimedAcquireLeak.fail(TimedAcquireLeak.java:333)
at TimedAcquireLeak.fail(TimedAcquireLeak.java:334)
at TimedAcquireLeak.equal(TimedAcquireLeak.java:340)
at TimedAcquireLeak.outputOf(TimedAcquireLeak.java:108)
at TimedAcquireLeak.commandOutputOf(TimedAcquireLeak.java:115)
at TimedAcquireLeak.realMain(TimedAcquireLeak.java:220)
at TimedAcquireLeak.main(TimedAcquireLeak.java:342)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:831)
java.lang.Exception: Stack trace
at java.base/java.lang.Thread.dumpStack(Thread.java:1377)
at TimedAcquireLeak.fail(TimedAcquireLeak.java:333)
at TimedAcquireLeak.fail(TimedAcquireLeak.java:334)
at TimedAcquireLeak.equal(TimedAcquireLeak.java:340)
at TimedAcquireLeak.outputOf(TimedAcquireLeak.java:109)
at TimedAcquireLeak.commandOutputOf(TimedAcquireLeak.java:115)
at TimedAcquireLeak.realMain(TimedAcquireLeak.java:220)
at TimedAcquireLeak.main(TimedAcquireLeak.java:342)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:831)
java.lang.AssertionError: Some tests failed
at TimedAcquireLeak.main(TimedAcquireLeak.java:344)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:831)