--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/jmx/remote/CCAdminReconnectTest.java	Thu Dec 20 20:12:32 2012 +0400
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 7009998
+ * @summary Tests the correct processing of concurrent ClientComunicatorAdmin reconnect requests.
+ * @author Jaroslav Bachorik
+ * @run clean CCAdminReconnectTest
+ * @run build CCAdminReconnectTest
+ * @run main CCAdminReconnectTest
+ */
+
+import com.sun.jmx.remote.internal.ClientCommunicatorAdmin;
+import java.io.*;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public class CCAdminReconnectTest {
+    final private static int THREAD_COUNT = 3;
+
+    public static void main(String ... args) throws Exception {
+        final ExecutorService e = Executors.newFixedThreadPool(THREAD_COUNT);
+        final AtomicBoolean beingReconnected = new AtomicBoolean();
+        final Collection<Exception> thrownExceptions = new LinkedList<>();
+
+        System.out.println(": Testing concurrent restart of ClientCommunicatorAdmin");
+
+        final ClientCommunicatorAdmin cca = new ClientCommunicatorAdmin(50) {
+
+            @Override
+            protected void checkConnection() throws IOException {
+                // empty
+            }
+
+            @Override
+            protected void doStart() throws IOException {
+                if (!beingReconnected.compareAndSet(false, true)) {
+                    IOException e = new IOException("Detected overlayed reconnect requests");
+                    thrownExceptions.add(e);
+                    throw e;
+                }
+                try {
+                    Thread.sleep(800); // simulating a workload
+                    beingReconnected.set(false);
+                } catch (InterruptedException e) {
+                }
+            }
+
+            @Override
+            protected void doStop() {
+                // empty
+            }
+        };
+
+        Runnable r = new Runnable() {
+            final private IOException e = new IOException("Forced reconnect");
+            @Override
+            public void run() {
+                try {
+                    // forcing the reconnect request
+                    cca.gotIOException(e);
+                } catch (Exception ex) {
+                    ex.printStackTrace();
+                }
+            }
+        };
+
+        System.out.println(": Spawning " + THREAD_COUNT + " concurrent reconnect requests");
+
+        for(int i=0;i<THREAD_COUNT;i++) {
+            e.execute(r);
+        }
+
+        Thread.sleep(THREAD_COUNT * 1000);
+        e.shutdown();
+        e.awaitTermination(10, TimeUnit.SECONDS);
+
+        cca.terminate();
+
+        for(Exception thrown : thrownExceptions) {
+            throw thrown;
+        }
+        System.out.println(": Requests processed successfully");
+    }
+}
+