--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/classfiles/attributes/lib/TestBase.java	Wed Apr 30 13:48:37 2014 -0700
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2014, 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.io.File;
+import java.io.IOException;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.stream.Stream;
+import javax.tools.JavaCompiler;
+import javax.tools.JavaFileObject;
+import javax.tools.ToolProvider;
+
+import static java.lang.String.format;
+import static java.util.Collections.emptyList;
+import static java.util.stream.Collectors.toList;
+
+public class TestBase {
+
+    public Map<String, ? extends JavaFileObject> compile(String... sources) throws IOException,
+            CompilationException {
+        return compile(emptyList(), sources);
+    }
+
+    /**
+     * @param options -  compiler options
+     * @param sources
+     * @return map where key is className, value is corresponding ClassFile.
+     * @throws IOException
+     */
+    public Map<String, ? extends JavaFileObject> compile(List<String> options, String... sources) throws IOException,
+            CompilationException {
+
+        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
+        List<? extends JavaFileObject> src = Stream.of(sources).map(ToolBox.JavaSource::new).collect(toList());
+
+        try (InMemoryFileManager fileManager = new InMemoryFileManager(compiler.getStandardFileManager(null, null, null))) {
+            boolean success = compiler.getTask(null, fileManager, null, options, null, src).call();
+            if (!success) throw new CompilationException("Compilation Error");
+            return fileManager.getClasses();
+        }
+    }
+
+    public void assertEquals(Object actual, Object expected, String message) {
+        if (!Objects.equals(actual, expected))
+            throw new AssertionFailedException(format("%s%nGot: %s, Expected: ", message, actual, expected));
+    }
+
+    public void assertNull(Object actual, String message) {
+        assertEquals(actual, null, message);
+    }
+
+    public void assertNotNull(Object actual, String message) {
+        if (Objects.isNull(actual)) {
+            throw new AssertionFailedException(message + " : Expected not null value");
+        }
+    }
+
+    public void assertTrue(boolean actual, String message) {
+        assertEquals(actual, true, message);
+    }
+
+    public File getSourceFile(String fileName) {
+        return new File(System.getProperty("test.src", "."), fileName);
+    }
+
+    public File getClassFile(String fileName) {
+        return new File(System.getProperty("test.classes", TestBase.class.getResource(".").getPath()), fileName);
+    }
+
+    public File getClassFile(Class clazz) {
+        return getClassFile(clazz.getName().replace(".", "/") + ".class");
+    }
+
+    public static class CompilationException extends Exception {
+
+        public CompilationException(String message) {
+            super(message);
+        }
+    }
+
+    public static class AssertionFailedException extends RuntimeException {
+        public AssertionFailedException(String message) {
+            super(message);
+        }
+    }
+}