compiler/profiling/spectrapredefineclass_classloaders/Launcher.java failed withException: java.lang.RuntimeException: com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file

java.lang.RuntimeException: com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file <...> target process <...> doesn't respond within <...> or HotSpot VM not loaded
at compiler.profiling.spectrapredefineclass_classloaders.Agent.main(Agent.java:82)
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:1583)