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

 /*

  * Copyright 2008 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.

  */

 import java.io.*;

 import java.util.*;

 import javax.tools.*;

 /*

  * @test

  * @bug 6439940

  * @summary Cleanup javap implementation

  * @run main/othervm ListTest

  */

 public class ListTest {

     public static void main(String[] args) throws Exception {

         new ListTest().run();

     }

     ListTest() {

         String v = System.getProperty("view.cmd");

         //      v = "/opt/teamware/7.7/bin/filemerge -r";

         if (v != null) {

             viewResults = true;

             viewCmd = Arrays.asList(v.split(" +"));

         }

     }

     void run() throws Exception {

         StandardLocation[] locs = new StandardLocation[] {

             StandardLocation.PLATFORM_CLASS_PATH,

             StandardLocation.CLASS_PATH,

         };

         int count = 0;

         int pass = 0;

         for (StandardLocation loc: locs) {

             for (String testClassName: list(loc)) {

                 count++;

                 if (test(testClassName))

                     pass++;

             }

         }

         if (pass < count)

             throw new Error(pass + "/" + count + " test cases passed");

     }

     Iterable<String> list(StandardLocation loc) throws IOException {

         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

         StandardJavaFileManager sfm = compiler.getStandardFileManager(null, null, null);

         Set<JavaFileObject.Kind> kinds = Collections.singleton(JavaFileObject.Kind.CLASS);

         List<String> list = new ArrayList<String>();

         for (JavaFileObject fo: sfm.list(loc, testPackage, kinds, true)) {

             //System.err.println(com.sun.tools.javac.util.Old199.getPath(fo));

             list.add(sfm.inferBinaryName(loc, fo));

         }

         return list;

     }

     boolean test(String testClassName) throws Exception {

         String[] args = new String[options.size() + 1];

         options.toArray(args);

         args[args.length - 1] = testClassName;

         byte[] oldOut = runOldJavap(args);

         byte[] newOut = runNewJavap(args);

         boolean ok = equal(oldOut, newOut);

         System.err.println((ok ? "pass" : "FAIL") + ": " + testClassName);

         if (!ok && viewResults)

             view(oldOut, newOut);

         return ok;

     }

     byte[] runOldJavap(String[] args) {

         //System.err.println("OLD: " + Arrays.asList(args));

         PrintStream oldOut = System.out;

         ByteArrayOutputStream out = new ByteArrayOutputStream();

         System.setOut(new PrintStream(out));

         try {

             sun.tools.javap.Main.entry(args);

         } finally {

             System.setOut(oldOut);

         }

         return out.toByteArray();

     }

     byte[] runNewJavap(String[] args) {

         String[] nArgs = new String[args.length + 2];

         nArgs[0] = "-XDcompat";

         nArgs[1] = "-XDignore.symbol.file";

         System.arraycopy(args, 0, nArgs, 2, args.length);

         //System.err.println("NEW: " + Arrays.asList(nArgs));

         ByteArrayOutputStream out = new ByteArrayOutputStream();

         com.sun.tools.javap.Main.run(nArgs,

                                      new PrintWriter(new OutputStreamWriter(out), true));

         return out.toByteArray();

     }

     File write(byte[] text, String suffix) throws IOException {

         File f = new File("ListTest." + suffix);

         FileOutputStream out = new FileOutputStream(f);

         out.write(text);

         out.close();

         return f;

     }

     boolean equal(byte[] a1, byte[] a2) {

         return Arrays.equals(a1, a2);

     }

     void view(byte[] oldOut, byte[] newOut) throws Exception {

         File oldFile = write(oldOut, "old");

         File newFile = write(newOut, "new");

         List<String> cmd = new ArrayList<String>();

         cmd.addAll(viewCmd);

         cmd.add(oldFile.getPath());

         cmd.add(newFile.getPath());

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

         p.getOutputStream().close();

         String line;

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

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

             System.err.println(line);

         in.close();

         p.waitFor();

     }

     String testPackage = "java.lang";

     List<String> options = Arrays.asList("-v");

     boolean viewResults;

     List<String> viewCmd;

 }