diff -r fd16c54261b3 -r 90ce3da70b43 jdk/test/com/sun/jdi/AnyDebuggeeTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/jdi/AnyDebuggeeTest.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,153 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/**
+ *
+ *  @bug 6224700
+ *  @summary ReferenceType.nestedTypes() is too slow
+ *  @author jjh
+ *
+ *  @run build TestScaffold VMConnection TargetListener TargetAdapter
+ *  @run compile -g AnyDebuggeeTest.java
+ *  @run main AnyDebuggeeeTest
+ *
+ *  This test is intended to be run manually to investigate behaviors;
+ *  it is not an actual test of any specific functionality, it just
+ *  allows you to run the debugger part of this test on any debuggee.
+ *  As set up, it prints the time to find all nested types and all
+ *  subclasses in the debuggee, and so can be used to verify the
+ *  fix for 6224700.
+ *
+ *  For other investigations, edit this test to do whatever you want.
+ *  To run this test do this:
+ *     runregress -no AnyDebuggeeTest <cmd line options>
+ *  where <cmd line options> are the options to be used to
+ *  launch the debuggee, with the classname prefixed with @@.
+ *  For example, this would run java2d demo as the debuggee:
+ *     runregress -no AnyDebuggeeTest -classpath $jdkDir/demo/jfc/Java2D/Java2Demo.jar \
+ *                                    -client @@java2d.Java2Demo'
+ * If <cmd line options> is not specified, then the AnyDebuggeeTarg class below
+ * is run as the debuggee.
+ */
+import com.sun.jdi.*;
+import com.sun.jdi.event.*;
+import com.sun.jdi.request.*;
+import javax.swing.*;
+
+import java.util.*;
+
+class AnyDebuggeeTarg {
+    public static void main(String[] args){
+        System.out.println("Howdy!");
+        try {
+            javax.swing.UIManager.setLookAndFeel( javax.swing.UIManager.getSystemLookAndFeelClassName());
+        } catch( Throwable exc) {
+        }
+        JFrame f = new JFrame("JFrame");
+        try {
+            Thread.sleep(60000);
+        } catch (InterruptedException ee) {
+        }
+
+        System.out.println("Goodbye from NestedClassesTarg!");
+    }
+}
+
+    /********** test program **********/
+
+public class AnyDebuggeeTest extends TestScaffold {
+    static String targetName = "AnyDebuggeeTarg";
+    ReferenceType targetClass;
+    ThreadReference mainThread;
+
+    AnyDebuggeeTest(String args[]) {
+        super(args);
+    }
+
+    public static void main(String[] args)      throws Exception {
+        /*
+         * If args contains @@xxxx, then that is the
+         * name of the class we are to run.
+         */
+        for (int ii = 0; ii < args.length; ii ++) {
+            if (args[ii].startsWith("@@")) {
+                targetName = args[ii] = args[ii].substring(2);
+            }
+        }
+        new AnyDebuggeeTest(args).startTests();
+    }
+
+
+    protected void runTests() throws Exception {
+        /*
+         * Get to the top of main()
+         * to determine targetClass and mainThread
+         */
+        BreakpointEvent bpe;
+        bpe = startToMain(targetName);
+
+        targetClass = bpe.location().declaringType();
+        mainThread = bpe.thread();
+
+        // Let debuggee run for awhile to get classes loaded
+        resumeForMsecs(20000);
+
+        List<ReferenceType> allClasses = vm().allClasses();
+        System.out.println( allClasses.size() + " classes");
+
+
+        int size = 0;
+        long start = System.currentTimeMillis();
+        for(ReferenceType rt: allClasses) {
+            if (rt instanceof ClassType) {
+            List<ReferenceType> nested = rt.nestedTypes();
+            int sz = nested.size();
+            size += sz;
+        }
+        }
+        long end = System.currentTimeMillis();
+        System.out.println(size + " nested types took " + (end - start) + " ms");
+
+        size = 0;
+        start = System.currentTimeMillis();
+        for(ReferenceType rt: allClasses) {
+            if (rt instanceof ClassType) {
+                List<ClassType> subs = ((ClassType)rt).subclasses();
+                int sz = subs.size();
+                size += sz;
+            }
+        }
+        end = System.currentTimeMillis();
+        System.out.println(size + " subclasses took " + (end - start) + " ms");
+
+        /*
+         * deal with results of test
+         * if anything has called failure("foo") testFailed will be true
+         */
+        if (!testFailed) {
+            println("AnyDebuggeeTest: passed");
+        } else {
+            throw new Exception("AnyDebuggeeTest: failed");
+        }
+    }
+}