Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright 2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

  * CA 95054 USA or visit www.sun.com if you need additional information or

  * have any questions.

  */

 /*

  * @test

  * @bug 6627362

  * @summary javac generates code that uses array.clone,

  *          which is not available on JavaCard

  */

 import java.io.*;

 import java.lang.reflect.*;

 import java.net.*;

 import java.util.*;

 public class T6627362 {

     static String testSrc = System.getProperty("test.src", ".");

     public static void main(String... args) throws Exception {

         new T6627362().run();

     }

     public void run() throws Exception {

         testStandard();

         testNoClone();

         if (errors > 0)

             throw new Error(errors + " test cases failed");

     }

     void testStandard() throws Exception {

         // compile and disassemble E.java, check for reference to Object.clone()

         File x = new File(testSrc, "x");

         String[] jcArgs = { "-d", ".",

                             new File(x, "E.java").getPath() };

         compile(jcArgs);

         String[] jpArgs = { "-classpath", ".", "-c", "E" };

         StringWriter sw = new StringWriter();

         javap(new PrintWriter(sw, true), jpArgs);

         check(sw.toString(), "Method \"[LE;\".clone:()Ljava/lang/Object;");

         callValues();

     }

     void testNoClone() throws Exception {

         // compile and disassemble E.java, using modified Object.java,

         // check for reference to System.arraycopy

         File x = new File(testSrc, "x");

         String[] jcArgs = { "-d", ".",

                             new File(x, "E.java").getPath(),

                             new File(x, "Object.java").getPath()};

         compile(jcArgs);

         String[] jpArgs = { "-classpath", ".", "-c", "E" };

         StringWriter sw = new StringWriter();

         javap(new PrintWriter(sw, true), jpArgs);

         check(sw.toString(), "//Method java/lang/System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V");

         callValues();

     }

     void compile(String... args) {

         int rc = com.sun.tools.javac.Main.compile(args);

         if (rc != 0)

             throw new Error("javac failed: " + Arrays.asList(args) + ": " + rc);

     }

     void javap(PrintWriter out, String... args) throws Exception {

         // for now, we have to exec javap

         File javaHome = new File(System.getProperty("java.home"));

         if (javaHome.getName().equals("jre"))

             javaHome = javaHome.getParentFile();

         File javap = new File(new File(javaHome, "bin"), "javap");

         String[] cmd = new String[args.length + 1];

         cmd[0] = javap.getPath();

         System.arraycopy(args, 0, cmd, 1, args.length);

         Process p = new ProcessBuilder(cmd).redirectErrorStream(true).start();

         p.getOutputStream().close();

         BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));

         String line;

         while ((line = in.readLine()) != null)

             out.println(line);

         int rc = p.waitFor();

         if (rc != 0)

             throw new Error("javap failed: " + Arrays.asList(args) + ": " + rc);

     }

     void check(String s, String require) {

         if (s.indexOf(require) == -1) {

             System.err.println("Can't find " + require);

             errors++;

         }

     }

     void callValues() {

         try {

             File dot = new File(System.getProperty("user.dir"));

             ClassLoader cl = new URLClassLoader(new URL[] { dot.toURL() });

             Class<?> e_class = cl.loadClass("E");

             Method m = e_class.getMethod("values", new Class[] { });

             //System.err.println(m);

             Object o = m.invoke(null, (Object[]) null);

             List<Object> v = Arrays.asList((Object[]) o);

             if (!v.toString().equals("[a, b, c]"))

                 throw new Error("unexpected result for E.values(): " + v);

         } catch (Exception e) {

             throw new Error(e);

         }

     }

     int errors;

 }