--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/management/jdp/PortAlreadyInUseTest.java	Fri Nov 08 18:16:12 2013 +0100
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2013, 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.
+ */
+
+
+import jdk.testlibrary.OutputAnalyzer;
+import jdk.testlibrary.Utils;
+
+import java.io.IOException;
+import java.net.ServerSocket;
+import java.util.logging.Logger;
+
+/**
+ * This test used for test development and it is not meant to be run by JTReg.
+ * <p/>
+ * This test exercises a retry mechanism to avoid a test failure because of
+ * starting the VM on a busy jmxremote.port.
+ * <p/>
+ * To run this test you'll need to add this VM option: -Dtest.jdk=<path-to-jdk>
+ */
+public class PortAlreadyInUseTest extends DynamicLauncher {
+
+    ServerSocket socket;
+    final Logger log = Logger.getLogger("PortAlreadyInUse");
+
+    protected void go() throws Exception {
+        jmxPort = Utils.getFreePort();
+        occupyPort();
+
+        log.info("Attempting to start a VM using the same port.");
+        OutputAnalyzer out = this.runVM();
+        out.shouldContain("Port already in use");
+        log.info("Failed as expected.");
+
+        log.info("Trying again using retries.");
+        this.run();
+    }
+
+    private void occupyPort() throws IOException {
+        socket = new ServerSocket(jmxPort);
+        log.info("Occupying port " + String.valueOf(jmxPort));
+    }
+
+    protected String[] options() {
+        String[] options = {
+                "-Dcom.sun.management.jmxremote.authenticate=false",
+                "-Dcom.sun.management.jmxremote.ssl=false",
+                "-Dcom.sun.management.jmxremote=true",
+                "-Dcom.sun.management.jmxremote.port=" + String.valueOf(jmxPort),
+                "-version"
+        };
+        return options;
+    }
+
+    public static void main(String[] args) throws Exception {
+        PortAlreadyInUseTest test = new PortAlreadyInUseTest();
+        test.go();
+    }
+
+}