Changes to the set of public classes in the JDK seems to break the TestRelease.java test:

{open/test/langtools} / tools/jdeprscan/tests/jdk/jdeprscan/TestRelease.java

If a public class is added to the JDK, say java.util.HitMe:

==========
package java.util;

/**
 * Hit me with your rhythm stick
 */
public class HitMe {
   HitMe hitMeSlowlyHitMeQuick;
}
==========

Then TestRelease.java will fail with messages like the following:

==========
STDERR:
Usage: jdeprscan [options] {dir|jar|class} ...

options:
        --class-path PATH
        --for-removal
        --full-version
  -? -h --help
  -l --list
        --release 6|7|8|9|10
  -v --verbose
        --version
warning: unknown enum constant javax.jws.soap.SOAPBinding.Use.LITERAL
warning: unknown enum constant javax.annotation.Resource.AuthenticationType.CONTAINER
warning: unknown enum constant javax.jws.soap.SOAPBinding.Use.LITERAL
warning: unknown enum constant javax.annotation.Resource.AuthenticationType.CONTAINER
warning: unknown enum constant javax.jws.soap.SOAPBinding.Use.LITERAL
warning: Supported source version 'RELEASE_10' from annotation processor 'com.sun.tools.jdeprscan.TraverseProc' less than -source '11'
error: Could not find class file for 'java.util.HitMe'.
java.lang.Exception: failures: 1
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:96)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:54)
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.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:844)
==========

This probably has something to do with versioning updating and modifications to the compiler's symbol files.