Test fails with an output "Proc abnormal end"

PROC: client readline: <EOF>
STDERR:
java.lang.Exception: Proc abnormal end
        at jdk.test.lib.process.Proc.readData(Proc.java:424)
        at Cleaners.main(Cleaners.java:106)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
        at java.base/java.lang.Thread.run(Thread.java:1570)

JavaTest Message: Test threw exception: java.lang.Exception: Proc abnormal end
JavaTest Message: shutting down test