--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/compilercontrol/share/scenario/Executor.java	Tue Nov 24 20:52:15 2015 +0300
@@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 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.
+ */
+
+package compiler.compilercontrol.share.scenario;
+
+import compiler.compilercontrol.share.actions.BaseAction;
+import jdk.test.lib.Asserts;
+import jdk.test.lib.OutputAnalyzer;
+import jdk.test.lib.ProcessTools;
+import jdk.test.lib.dcmd.CommandExecutor;
+import jdk.test.lib.dcmd.PidJcmdExecutor;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.lang.reflect.Executable;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class Executor {
+    private final boolean isValid;
+    private final List<String> vmOptions;
+    private final Map<Executable, State> states;
+    private final List<String> jcmdCommands;
+
+    /**
+     * Constructor
+     *
+     * @param isValid      shows that the input given to the VM is valid and
+     *                     VM shouldn't fail
+     * @param vmOptions    a list of VM input options
+     * @param states       a state map, or null for the non-checking execution
+     * @param jcmdCommands a list of diagnostic commands to be preformed
+     *                     on test VM
+     */
+    public Executor(boolean isValid, List<String> vmOptions,
+            Map<Executable, State> states, List<String> jcmdCommands) {
+        this.isValid = isValid;
+        if (vmOptions == null) {
+            this.vmOptions = new ArrayList<>();
+        } else {
+            this.vmOptions = vmOptions;
+        }
+        this.states = states;
+        this.jcmdCommands = jcmdCommands;
+    }
+
+    /**
+     * Executes separate VM a gets an OutputAnalyzer instance with the results
+     * of execution
+     */
+    public OutputAnalyzer execute() {
+        // Add class name that would be executed in a separate VM
+        String classCmd = BaseAction.class.getName();
+        vmOptions.add(classCmd);
+        OutputAnalyzer output;
+        try (ServerSocket serverSocket = new ServerSocket(0)) {
+            if (isValid) {
+                // Get port test VM will connect to
+                int port = serverSocket.getLocalPort();
+                if (port == -1) {
+                    throw new Error("Socket is not bound: " + port);
+                }
+                vmOptions.add(String.valueOf(port));
+                if (states != null) {
+                    // add flag to show that there should be state map passed
+                    vmOptions.add("states");
+                }
+                // Start separate thread to connect with test VM
+                new Thread(() -> connectTestVM(serverSocket)).start();
+            }
+            // Start test VM
+            output = ProcessTools.executeTestJvmAllArgs(
+                    vmOptions.toArray(new String[vmOptions.size()]));
+        } catch (Throwable thr) {
+            throw new Error("Execution failed: " + thr.getMessage(), thr);
+        }
+        return output;
+    }
+
+    /*
+     * Performs connection with a test VM, sends method states and performs
+     * JCMD operations on a test VM.
+     */
+    private void connectTestVM(ServerSocket serverSocket) {
+        /*
+         * There are no way to prove that accept was invoked before we started
+         * test VM that connects to this serverSocket. Connection timeout is
+         * enough
+         */
+        try (
+                Socket socket = serverSocket.accept();
+                PrintWriter pw = new PrintWriter(socket.getOutputStream(),
+                        true);
+                BufferedReader in = new BufferedReader(new InputStreamReader(
+                        socket.getInputStream()))) {
+            // Get pid of the executed process
+            int pid = Integer.parseInt(in.readLine());
+            Asserts.assertNE(pid, 0, "Got incorrect pid");
+            executeJCMD(pid);
+            if (states != null) {
+                // serialize and send state map
+                states.forEach((executable, state) -> {
+                    pw.println("{");
+                    pw.println(executable.toGenericString());
+                    pw.println(state.toString());
+                    pw.println("}");
+                });
+            } else {
+                pw.println();
+            }
+        } catch (IOException e) {
+            throw new Error("Failed to write data: " + e.getMessage(), e);
+        }
+    }
+
+    // Executes all diagnostic commands
+    protected void executeJCMD(int pid) {
+        CommandExecutor jcmdExecutor = new PidJcmdExecutor(String.valueOf(pid));
+        for (String command : jcmdCommands) {
+            jcmdExecutor.execute(command);
+        }
+    }
+}