Index: src/org/jruby/RubyModule.java
===================================================================
--- src/org/jruby/RubyModule.java	(revision 3519)
+++ src/org/jruby/RubyModule.java	(working copy)
@@ -284,6 +284,10 @@
      */
     public String getName() {
         if (getBaseName() == null) {
+            IRubyObject javaClass;
+            if ((javaClass = getInstanceVariable("@java_class")) != null) {
+                return "Java::" + javaClass.toString();
+            }
             if (isClass()) {
                 return "#<" + "Class" + ":01x" + Integer.toHexString(System.identityHashCode(this)) + ">";
             } else {