jdk/jshell/ToolTabSnippetTest.java failed with "Problem cleaning up the following threads"

----------System.err:(70/4569)----------

JavaTest Message: Problem cleaning up the following threads:
AgentVMThread
  at java.base@12-internal/java.lang.ThreadGroup.addUnstarted(ThreadGroup.java:863)
  at java.base@12-internal/java.lang.Thread.<init>(Thread.java:436)
  at java.base@12-internal/java.lang.Thread.<init>(Thread.java:710)
  at java.base@12-internal/java.lang.Thread.<init>(Thread.java:495)
  at UITesting.doRunTest(UITesting.java:85)
  at ToolTabSnippetTest.testExpression(ToolTabSnippetTest.java:62)
  at java.base@12-internal/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base@12-internal/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base@12-internal/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base@12-internal/java.lang.reflect.Method.invoke(Method.java:567)
  at app//org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
  at app//org.testng.internal.Invoker.invokeMethod(Invoker.java:639)
  at app//org.testng.internal.Invoker.invokeTestMethod(Invoker.java:821)
  at app//org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1131)
  at app//org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:124)
  at app//org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
  at app//org.testng.TestRunner.privateRun(TestRunner.java:773)
  at app//org.testng.TestRunner.run(TestRunner.java:623)
  at app//org.testng.SuiteRunner.runTest(SuiteRunner.java:357)
  at app//org.testng.SuiteRunner.runSequentially(SuiteRunner.java:352)
  at app//org.testng.SuiteRunner.privateRun(SuiteRunner.java:310)
  ...

java.lang.InterruptedException
at java.base/java.lang.Object.wait(Native Method)
at UITesting.waitOutput(UITesting.java:175)
at UITesting.waitOutput(UITesting.java:141)
at UITesting.doRunTest(UITesting.java:111)
at ToolTabSnippetTest.testExpression(ToolTabSnippetTest.java:62)
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:567)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:639)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:821)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1131)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:124)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
at org.testng.TestRunner.privateRun(TestRunner.java:773)
at org.testng.TestRunner.run(TestRunner.java:623)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:357)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:352)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:310)
at org.testng.SuiteRunner.run(SuiteRunner.java:259)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1185)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1110)
at org.testng.TestNG.run(TestNG.java:1018)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:94)
at jdk.internal.reflect.GeneratedMethodAccessor20.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:246)
at java.base/java.lang.Thread.run(Thread.java:835)
java.lang.Exception: failures: 1
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:96)
at jdk.internal.reflect.GeneratedMethodAccessor20.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:246)
at java.base/java.lang.Thread.run(Thread.java:835)