--- /dev/null	2018-07-24 14:03:54.000000000 +0800
+++ new/test/jdk/com/sun/jndi/dns/lib/TestBase.java	2018-07-24 14:03:53.000000000 +0800
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2018, 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.
+ */
+
+/**
+ * The test base class for JNDI related tests
+ *
+ * run() will be the entry to launch whole tests, base test sequence is
+ * initRes(), initTest(), setupTest() and launch()
+ *
+ * launch() will call real test logic runTest() which required to be implemented
+ * in test class
+ *
+ * exception handling logic should be placed in handleException()
+ *
+ * cleanup related should be placed in cleanupTest which been called in finally
+ * block
+ */
+public abstract class TestBase {
+
+    /**
+     * The entry to the test
+     *
+     * @param args given input arguments
+     * @throws Exception if any exception
+     */
+    public void run(String[] args) throws Exception {
+        initRes();
+        initTest(args);
+        setupTest();
+        launch();
+    }
+
+    /**
+     * Initial local resources, such as socket
+     *
+     * @throws Exception if any exception
+     */
+    public void initRes() throws Exception {
+    }
+
+    /**
+     * Initial test with given arguments
+     *
+     * @param args given arguments
+     */
+    public void initTest(String[] args) {
+    }
+
+    /**
+     * Setup test
+     */
+    public void setupTest() {
+    }
+
+    /**
+     * Launch test
+     *
+     * @throws Exception if any exception
+     */
+    public void launch() throws Exception {
+        try {
+            runTest();
+        } catch (Exception e) {
+            if (!handleException(e)) {
+                throw e;
+            }
+        } finally {
+            cleanupTest();
+        }
+    }
+
+    /**
+     * The real test logic to run, this required to be implemented in test class
+     *
+     * @throws Exception if any exception
+     */
+    public abstract void runTest() throws Exception;
+
+    /**
+     * Handle test exception
+     *
+     * @param e exception which been thrown during test runTest()
+     * @return <tt>true</tt> if given exception is expected
+     */
+    public boolean handleException(Exception e) {
+        return false;
+    }
+
+    /**
+     * Cleanup test
+     */
+    public abstract void cleanupTest();
+}