Recently JCK test :

FilePermission fp1 = new FilePermission("/-", *“*read");
FilePermission fp2 = new FilePermission("filename", *“*read");
assertTrue(fp1.implies(fp2));

started failing.

After the changed made by JDK-8164705.

There is no clear direction and reason in spec that why this test will fail. In the comment section I am adding the discussion of Elena.