--- old/test/java/rmi/registry/interfaceHash/InterfaceHash.java	2012-07-03 11:31:48.418950600 -0700
+++ new/test/java/rmi/registry/interfaceHash/InterfaceHash.java	2012-07-03 11:31:48.210947288 -0700
@@ -35,8 +35,10 @@
  * "interface hash": 4905912898345647071L.
  *
  * @author Peter Jones
+ * @library ../../testlibrary
  * @build InterfaceHash
  * @build ReferenceRegistryStub
+ * @build TestLibrary
  * @run main/othervm InterfaceHash
  */
 
@@ -58,7 +60,7 @@
 
 public class InterfaceHash {
 
-    private static final int PORT = 2020;
+    private static final int PORT = TestLibrary.getUnusedRandomPort();
     private static final String NAME = "WMM";
 
     public static void main(String[] args) throws Exception {