jdk8-mips64-public/langtools: test/tools/javac/6567415/T6567415.java@988aef3a8c3a (annotated)

test/tools/javac/6567415/T6567415.java@988aef3a8c3a (annotated)

test/tools/javac/6567415/T6567415.java

Wed, 26 Jun 2013 11:26:33 -0700

author: katleman
date: Wed, 26 Jun 2013 11:26:33 -0700
changeset 1847: 988aef3a8c3a
parent 1804: 79fd9cfa55f2
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

8016684: JDK8 b94 source with GPL header errors
Reviewed-by: tbell, darcy

 /*
  * Copyright (c) 2010, 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.
  */
 /*
  * @test
  * @bug 6567415
  * @summary Test to ensure javac does not go into an infinite loop, while
  *               reading a classfile of a specific length.
  * @compile -XDignore.symbol.file T6567415.java
  * @run main T6567415
  * @author ksrini
  */
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.PrintStream;
 import java.io.RandomAccessFile;
 import java.nio.ByteBuffer;
 import java.nio.MappedByteBuffer;
 import java.nio.channels.FileChannel;
 /*
  * this test compiles Bar.java into a classfile and enlarges the file to the
  * magic file length, then use this mutated file on the classpath to compile
  * Foo.java which references Bar.java and Ka-boom. QED.
  */
 public class T6567415 {
     final static String TEST_FILE_NAME = "Bar";
     final static String TEST_JAVA = TEST_FILE_NAME + ".java";
     final static String TEST_CLASS = TEST_FILE_NAME + ".class";
     final static String TEST2_FILE_NAME = "Foo";
     final static String TEST2_JAVA = TEST2_FILE_NAME + ".java";
     /*
      * the following is the initial buffer length set in ClassReader.java
      * thus this value needs to change if ClassReader buf length changes.
      */
     final static int BAD_FILE_LENGTH =
             com.sun.tools.javac.jvm.ClassReader.INITIAL_BUFFER_SIZE;
     static void createClassFile() throws IOException {
         FileOutputStream fos = null;
         try {
             fos = new FileOutputStream(TEST_JAVA);
             PrintStream ps = new PrintStream(fos);
             ps.println("public class " + TEST_FILE_NAME + " {}");
         } finally {
             fos.close();
         }
         String cmds[] = {TEST_JAVA};
         com.sun.tools.javac.Main.compile(cmds);
     }
     static void enlargeClassFile() throws IOException {
         File f = new File(TEST_CLASS);
         if (!f.exists()) {
             System.out.println("file not found: " + TEST_CLASS);
             System.exit(1);
         }
         File tfile = new File(f.getAbsolutePath() + ".tmp");
         f.renameTo(tfile);
         RandomAccessFile raf = null;
         FileChannel wfc = null;
         FileInputStream fis = null;
         FileChannel rfc = null;
         try {
             raf =  new RandomAccessFile(f, "rw");
             wfc = raf.getChannel();
             fis = new FileInputStream(tfile);
             rfc = fis.getChannel();
             ByteBuffer bb = MappedByteBuffer.allocate(BAD_FILE_LENGTH);
             rfc.read(bb);
             bb.rewind();
             wfc.write(bb);
             wfc.truncate(BAD_FILE_LENGTH);
         } finally {
             wfc.close();
             raf.close();
             rfc.close();
             fis.close();
         }
         System.out.println("file length = " + f.length());
     }
     static void createJavaFile() throws IOException {
         FileOutputStream fos = null;
         try {
             fos = new FileOutputStream(TEST2_JAVA);
             PrintStream ps = new PrintStream(fos);
             ps.println("public class " + TEST2_FILE_NAME +
                     " {" + TEST_FILE_NAME + " b = new " +
                     TEST_FILE_NAME  + " ();}");
         } finally {
             fos.close();
         }
     }
     public static void main(String... args) throws Exception {
         createClassFile();
         enlargeClassFile();
         createJavaFile();
         Thread t = new Thread () {
             @Override
             public void run() {
                 String cmds[] = {"-verbose", "-cp", ".", TEST2_JAVA};
                 int ret = com.sun.tools.javac.Main.compile(cmds);
                 System.out.println("test compilation returns: " + ret);
             }
         };
         t.start();
         t.join(1000*60);
         System.out.println(t.getState());
         if (t.isAlive()) {
             throw new RuntimeException("Error: compilation is looping");
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/6567415/T6567415.java@988aef3a8c3a (annotated)

test/tools/javac/6567415/T6567415.java