--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/testlibrary_tests/ctw/CtwTest.java	Mon Sep 29 09:29:24 2014 -0700
@@ -0,0 +1,118 @@
+/*
+ * 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 java.util.List;
+import java.util.Collections;
+import java.util.ArrayList;
+
+import java.io.File;
+import java.io.Writer;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.BufferedReader;
+
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import java.nio.charset.Charset;
+
+import com.oracle.java.testlibrary.JDKToolFinder;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+
+public abstract class CtwTest {
+    protected final String[] shouldContain;
+    protected CtwTest(String[] shouldContain) {
+        this.shouldContain = shouldContain;
+    }
+
+    public void run(String[] args) throws Exception {
+        if (args.length == 0) {
+            throw new Error("args is empty");
+        }
+        switch (args[0]) {
+            case "prepare":
+                prepare();
+                break;
+            case "check":
+                check(args);
+                break;
+            default:
+                throw new Error("unregonized action -- " + args[0]);
+        }
+    }
+
+    protected void prepare() throws Exception { }
+
+    protected void check(String[] args) throws Exception  {
+        if (args.length < 2) {
+            throw new Error("logfile isn't specified");
+        }
+        String logfile = args[1];
+        try (BufferedReader r = Files.newBufferedReader(Paths.get(logfile),
+                Charset.defaultCharset())) {
+            OutputAnalyzer output = readOutput(r);
+           for (String test : shouldContain) {
+                output.shouldContain(test);
+            }
+        }
+    }
+
+    private static OutputAnalyzer readOutput(BufferedReader reader)
+            throws IOException {
+        StringBuilder builder = new StringBuilder();
+        String eol = String.format("%n");
+        String line;
+
+        while ((line = reader.readLine()) != null) {
+            builder.append(line);
+            builder.append(eol);
+        }
+        return new OutputAnalyzer(builder.toString(), "");
+    }
+
+    protected void dump(OutputAnalyzer output, String name) {
+        try (Writer w = new FileWriter(name + ".out")) {
+            String s = output.getStdout();
+            w.write(s, s.length(), 0);
+        } catch (IOException io) {
+            io.printStackTrace();
+        }
+        try (Writer w = new FileWriter(name + ".err")) {
+            String s = output.getStderr();
+            w.write(s, s.length(), 0);
+        } catch (IOException io) {
+            io.printStackTrace();
+        }
+    }
+
+    protected ProcessBuilder createJarProcessBuilder(String... command)
+            throws Exception {
+        String javapath = JDKToolFinder.getJDKTool("jar");
+
+        ArrayList<String> args = new ArrayList<>();
+        args.add(javapath);
+        Collections.addAll(args, command);
+
+        return new ProcessBuilder(args.toArray(new String[args.size()]));
+    }
+}