diff -r 4ebc2e2fb97c -r 71c04702a3d5 test/jdk/com/sun/jdi/connect/spi/SimpleLaunchingConnector.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/com/sun/jdi/connect/spi/SimpleLaunchingConnector.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,160 @@
+/*
+ * Copyright (c) 2003, 2015, 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.
+ */
+
+/*
+ * A Simple LaunchingConnector used by unit test :-
+ * test/com/sun/jdi/connect/spi/DebugUsingCustomConnector.java
+ */
+import com.sun.jdi.VirtualMachine;
+import com.sun.jdi.Bootstrap;
+import com.sun.jdi.connect.Connector;
+import com.sun.jdi.connect.LaunchingConnector;
+import com.sun.jdi.connect.Transport;
+import com.sun.jdi.connect.IllegalConnectorArgumentsException;
+import com.sun.jdi.connect.VMStartException;
+import com.sun.jdi.connect.spi.TransportService;
+import com.sun.jdi.connect.spi.Connection;
+import java.io.IOException;
+import java.io.File;
+import java.util.Map;
+import java.util.HashMap;
+
+public class SimpleLaunchingConnector implements LaunchingConnector {
+    TransportService ts;
+    String ARG_NAME = "class";
+
+    /*
+     * Simple implementation of Connector.StringArgument
+     */
+    static class StringArgumentImpl implements Connector.StringArgument {
+        String name;
+        String label;
+        String description;
+        String value;
+
+        StringArgumentImpl(String name, String label, String description, String value) {
+            this.name = name;
+            this.label = label;
+            this.description = description;
+            this.value = value;
+        }
+
+        public String name() {
+            return name;
+        }
+
+        public String label() {
+            return label;
+        }
+
+        public String description() {
+            return description;
+        }
+
+        public String value() {
+            return value;
+        }
+
+        public void setValue(String value) {
+            this.value = value;
+        }
+
+        public boolean isValid(String value) {
+            if (value.length() > 0) {
+                return true;
+            }
+            return false;
+        }
+
+        public boolean mustSpecify() {
+            return true;
+        }
+    }
+
+    public SimpleLaunchingConnector() {
+        try {
+            Class<?> c = Class.forName("com.sun.tools.jdi.SocketTransportService");
+            ts = (TransportService)c.newInstance();
+        } catch (Exception x) {
+            throw new Error(x);
+        }
+    }
+
+    public String name() {
+        return "SimpleLaunchingConnector";
+    }
+
+    public String description() {
+        return "SimpleLaunchingConnector";
+    }
+
+    public Transport transport() {
+        return new Transport() {
+            public String name() {
+                return ts.name();
+            }
+        };
+    }
+
+    public Map defaultArguments() {
+        HashMap map = new HashMap();
+        map.put(ARG_NAME,
+                new StringArgumentImpl(ARG_NAME, "class name", "class name", ""));
+        return map;
+    }
+
+    public VirtualMachine launch(Map<String, ? extends Connector.Argument> arguments) throws
+                              IOException,
+                              IllegalConnectorArgumentsException,
+                              VMStartException {
+
+        /*
+         * Get the class name that we are to execute
+         */
+        String className = ((StringArgumentImpl)arguments.get(ARG_NAME)).value();
+        if (className.length() == 0) {
+            throw new IllegalConnectorArgumentsException("class name missing", ARG_NAME);
+        }
+
+        /*
+         * Listen on an emperical port; launch the debuggee; wait for
+         * for the debuggee to connect; stop listening;
+         */
+        TransportService.ListenKey key = ts.startListening();
+
+        String exe = System.getProperty("java.home") + File.separator + "bin" +
+            File.separator + "java";
+        String cmd = exe + " -Xdebug -Xrunjdwp:transport=dt_socket,timeout=15000,address=" +
+            key.address() +
+            " -classpath " + System.getProperty("test.classes") +
+            " " + className;
+        Process process = Runtime.getRuntime().exec(cmd);
+        Connection conn = ts.accept(key, 30*1000, 9*1000);
+        ts.stopListening(key);
+
+        /*
+         * Debugee is connected - return the virtual machine mirror
+         */
+        return Bootstrap.virtualMachineManager().createVirtualMachine(conn);
+    }
+}