test/java/rmi/activation/ActivationSystem/stubClassesPermitted/StubClassesPermitted.java

@@ -83,11 +83,11 @@
         System.err.println("\nRegression test for bug/rfe 4179055\n");
 
         try {
             TestLibrary.suggestSecurityManager("java.lang.SecurityManager");
 
-            registry = TestLibrary.createRegistryOnUnusedPort();
+            registry = TestLibrary.createRegistryOnEphemeralPort();
             registryPort = TestLibrary.getRegistryPort(registry);
 
             // must run with java.lang.SecurityManager or the test
             // result will be nullified if running with a build where
             // 4180392 has not been fixed.