Test applications/ctw/Modules.java fails with ava.lang.AssertionError in sun.hotspot.tools.ctw.Utils.fileNameToClassName

Here is the stack trace:
----------System.err:(28/2008)----------
java.lang.AssertionError
at sun.hotspot.tools.ctw.Utils.fileNameToClassName(Utils.java:211)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
at java.base/java.util.stream.ReduceOps$5.evaluateSequential(ReduceOps.java:257)
at java.base/java.util.stream.ReduceOps$5.evaluateSequential(ReduceOps.java:248)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.count(ReferencePipeline.java:538)
at sun.hotspot.tools.ctw.ClassPathJimageEntry.classCount(ClassPathJimageEntry.java:75)
at sun.hotspot.tools.ctw.CtwRunner.classCount(CtwRunner.java:166)
at sun.hotspot.tools.ctw.CtwRunner.startCtwforAllClasses(CtwRunner.java:105)
at sun.hotspot.tools.ctw.CtwRunner.run(CtwRunner.java:83)
at sun.hotspot.tools.ctw.CtwRunner.main(CtwRunner.java:61)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:230)
at java.base/java.lang.Thread.run(Thread.java:844)

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

result: Failed. Execution failed: `main' threw exception: java.lang.AssertionError


test result: Failed. Execution failed: `main' threw exception: java.lang.AssertionError