The following test is failing the JDK16 CI:

runtime/cds/appcds/jigsaw/PatchModule/Simple.java

Here's a snippet from the log file:

----------System.err:(15/906)----------
java.lang.RuntimeException: test.dynamic.dump is not supported with an empty classpath while the classlist is not empty
at TestCommon.createArchive(TestCommon.java:245)
at TestCommon.createArchive(TestCommon.java:162)
at TestCommon.dump(TestCommon.java:132)
at Simple.main(Simple.java:83)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
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:832)

JavaTest Message: Test threw exception: java.lang.RuntimeException
JavaTest Message: shutting down test

result: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: test.dynamic.dump is not supported with an empty classpath while the classlist is not empty

The test appears to be failing on Linux-X64, macOSX and Win-X64
in every Tier4 job set.