From a JPRT run on 32-bit Linux

ACTION: main -- Failed. Execution failed: `main' threw exception: java.lang.NullPointerException
REASON: User specified action: run main/othervm/native -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI HandshakeTransitionTest
TIME: 0.708 seconds
messages:
command: main -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI HandshakeTransitionTest
reason: User specified action: run main/othervm/native -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI HandshakeTransitionTest
Mode: othervm [/othervm specified]
elapsed time (seconds): 0.708
configuration:
STDOUT:
STDERR:
java.lang.NullPointerException
at HandshakeTransitionTest.main(HandshakeTransitionTest.java:63)
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:564)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:844)

I can't see how the NPE can arise though!