--- /dev/null	2019-02-07 20:54:51.336000000 +0300
+++ new/test/lib/jdk/test/lib/JDKToolLauncher.java	2019-02-08 18:33:58.359294822 +0300
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2013, 2016, 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 jdk.test.lib;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * A utility for constructing command lines for starting JDK tool processes.
+ *
+ * The JDKToolLauncher can in particular be combined with a
+ * java.lang.ProcessBuilder to easily run a JDK tool. For example, the following
+ * code run {@code jmap -heap} against a process with GC logging turned on for
+ * the {@code jmap} process:
+ *
+ * <pre>
+ * {@code
+ * JDKToolLauncher jmap = JDKToolLauncher.create("jmap")
+ *                                       .addVMArg("-XX:+PrintGC");
+ *                                       .addVMArg("-XX:+PrintGCDetails")
+ *                                       .addToolArg("-heap")
+ *                                       .addToolArg(pid);
+ * ProcessBuilder pb = new ProcessBuilder(jmap.getCommand());
+ * Process p = pb.start();
+ * }
+ * </pre>
+ */
+public class JDKToolLauncher {
+    private final String executable;
+    private final List<String> vmArgs = new ArrayList<String>();
+    private final List<String> toolArgs = new ArrayList<String>();
+
+    private JDKToolLauncher(String tool, boolean useCompilerJDK) {
+        if (useCompilerJDK) {
+            executable = JDKToolFinder.getJDKTool(tool);
+        } else {
+            executable = JDKToolFinder.getTestJDKTool(tool);
+        }
+    }
+
+    /**
+     * Creates a new JDKToolLauncher for the specified tool. Using tools path
+     * from the compiler JDK.
+     *
+     * @param tool
+     *            The name of the tool
+     * @return A new JDKToolLauncher
+     */
+    public static JDKToolLauncher create(String tool) {
+        return new JDKToolLauncher(tool, true);
+    }
+
+    /**
+     * Creates a new JDKToolLauncher for the specified tool in the Tested JDK.
+     *
+     * @param tool
+     *            The name of the tool
+     *
+     * @return A new JDKToolLauncher
+     */
+    public static JDKToolLauncher createUsingTestJDK(String tool) {
+        return new JDKToolLauncher(tool, false);
+    }
+
+    /**
+     * Adds an argument to the JVM running the tool.
+     *
+     * The JVM arguments are passed to the underlying JVM running the tool.
+     * Arguments will automatically be prepended with "-J".
+     *
+     * Any platform specific arguments required for running the tool are
+     * automatically added.
+     *
+     *
+     * @param arg
+     *            The argument to VM running the tool
+     * @return The JDKToolLauncher instance
+     */
+    public JDKToolLauncher addVMArg(String arg) {
+        vmArgs.add(arg);
+        return this;
+    }
+
+    /**
+     * Adds an argument to the tool.
+     *
+     * @param arg
+     *            The argument to the tool
+     * @return The JDKToolLauncher instance
+     */
+    public JDKToolLauncher addToolArg(String arg) {
+        toolArgs.add(arg);
+        return this;
+    }
+
+    /**
+     * Returns the command that can be used for running the tool.
+     *
+     * @return An array whose elements are the arguments of the command.
+     */
+    public String[] getCommand() {
+        List<String> command = new ArrayList<String>();
+        command.add(executable);
+        // Add -J in front of all vmArgs
+        for (String arg : vmArgs) {
+            command.add("-J" + arg);
+        }
+        command.addAll(toolArgs);
+        return command.toArray(new String[command.size()]);
+    }
+}