FocusTransferFWDDocModal4Test.java fails with NoClassDefFoundError: FocusTransferFWDTest

The following test failed in the JDK24 CI:

java/awt/Modal/ModalFocusTransferTests/FocusTransferFWDDocModal4Test.java

Here's a snippet from the log file:

#section:main
----------messages:(7/304)----------
command: main FocusTransferFWDDocModal4Test
reason: User specified action: run main FocusTransferFWDDocModal4Test
started: Thu Aug 08 20:23:21 UTC 2024
Mode: othervm
Additional options from @modules: --add-modules java.desktop
finished: Thu Aug 08 20:23:22 UTC 2024
elapsed time (seconds): 0.122
----------configuration:(3/43)----------
Boot Layer
  add modules: java.desktop

----------System.out:(0/0)----------
----------System.err:(16/1007)----------
java.lang.NoClassDefFoundError: FocusTransferFWDTest
at FocusTransferFWDDocModal4Test.main(FocusTransferFWDDocModal4Test.java:47)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:588)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1575)
Caused by: java.lang.ClassNotFoundException: FocusTransferFWDTest
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:528)
... 5 more

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

STATUS:Failed.`main' threw exception: java.lang.NoClassDefFoundError: FocusTransferFWDTest
----------rerun:(51/7227)*----------