URLClassLoaderTests NonExistJarTests.CheckForError1 fails from SecurityManager removal

[theresa-m]

This test is disabled in #20625 and requires further investigation.

URLClassLoader previously relied on java.security.AccessController to determine whether or not a class to be loaded can be found on the classpath. NonExistJarTests.CheckForError1 tests that class B_Dummy that is loaded in the shared class cache but is not on the classpath is not loaded and should result in:

CORRECT A
Exception in thread "main" java.lang.NoClassDefFoundError: jnurlcldr.shared.nonexistjar.B_Dummy
        at jnurlcldr.shared.nonexistjar.A_Main$Data.getInt(A_Main.java:33)
        at jnurlcldr.shared.nonexistjar.A_Main.main(A_Main.java:47)
Caused by: java.lang.ClassNotFoundException: jnurlcldr.shared.nonexistjar.B_Dummy
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:827)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:1099)
        ... 2 more

With the latest JEP 486 changes the classpath check is not enforced and B_Dummy is retrieved from the scc.

Related to: #20563

[github-actions]

Issue Number: 20702
Status: Open
Recommended Components: comp:test, comp:jclextensions, comp:vm