Launcher termination can crash if the VM could not be shutdown

gc/g1/logging/TestG1LoggingFailure.java failed with exception java.lang.RuntimeException: 'pure virtual method called' found in stderr

[17.322s][info][gc] GC(22) Concurrent Cycle 242.132ms
[17.336s][info][gc] GC(27) Pause Young (G1 Evacuation Pause) 19M->19M(20M) 13.472ms
];
 stderr: [
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "main"
pure virtual method called
terminate called without an active exception
]
 exitValue = 1

java.lang.RuntimeException: 'pure virtual method called' found in stderr

at jdk.test.lib.process.OutputAnalyzer.shouldNotContain(OutputAnalyzer.java:180)
at gc.g1.logging.TestG1LoggingFailure.startVM(TestG1LoggingFailure.java:68)
at gc.g1.logging.TestG1LoggingFailure.main(TestG1LoggingFailure.java:61)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(java.base@9-internal/Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(java.base@9-internal/NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(java.base@9-internal/DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(java.base@9-internal/Method.java:537)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:110)
at java.lang.Thread.run(java.base@9-internal/Thread.java:844)