New code added by JDK-8231125 (Improve testing of parallel loading of shared classes by the boot class loader) fails when running with -Dtest.dynamic.cds.archive=true in Mach5 testing tier-4:

java.lang.RuntimeException: test.dynamic.dump not supported empty classpath with non-empty classlist
at TestCommon.createArchive(TestCommon.java:221)
at TestCommon.createArchive(TestCommon.java:146)
at TestCommon.dump(TestCommon.java:132)
at TestCommon.testDump(TestCommon.java:463)
at ParallelLoadTest.main(ParallelLoadTest.java:61)
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.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
at java.base/java.lang.Thread.run(Thread.java:830)