jdk8-mips64-public/langtools: test/tools/javap/T6879371.java@261c54b2312e

     1 /*

     2  * Copyright 2009 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

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

    21  * have any questions.

    22  */

    24 /*

    25  * @test

    26  * @bug 6879371

    27  * @summary javap does not close internal default file manager

    28  */

    30 import java.io.*;

    31 import java.util.zip.*;

    33 public class T6879371 {

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

    35         new T6879371().run();

    36     }

    38     public void run() throws Exception {

    39         // create a simple test class which we can put into

    40         // a test zip file and know that it will be used by

    41         // javap.

    42         File classDir = new File("classes");

    43         classDir.mkdir();

    45         String className = "Test";

    46         File javaFile = writeTestFile(className);

    47         compileTestFile(classDir, javaFile);

    49         test(classDir, className, false);

    50         test(classDir, className, true);

    51     }

    53     void test(File classDir, String className, boolean useJavaUtilZip) throws Exception {

    54         // javac should really not be using system properties like this

    55         // -- it should really be using (hidden) options -- but until then

    56         // take care to leave system properties as we find them, so as not

    57         // to adversely affect other tests that might follow.

    58         String prev = System.getProperty("useJavaUtilZip");

    59         setProperty("useJavaUtilZip", (useJavaUtilZip ? "true" : null));

    60         try {

    61             File zipFile = zip(classDir, new File(classDir + ".zip"));

    62             javap("-classpath", zipFile.getPath(), className);

    64             if (!zipFile.delete())

    65                 throw new Exception("failed to delete " + zipFile);

    66         } finally {

    67             setProperty("useJavaUtilZip", prev);

    68         }

    69     }

    71     File writeTestFile(String name) throws IOException {

    72         File f = new File(name + ".java");

    73         PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));

    74         out.println("class " + name + " { }");

    75         out.close();

    76         return f;

    77     }

    79     void compileTestFile(File classDir, File file) {

    80         int rc = com.sun.tools.javac.Main.compile(

    81            new String[] { "-d", classDir.getPath(), file.getPath() });

    82         if (rc != 0)

    83             throw new Error("compilation failed. rc=" + rc);

    84     }

    86     File zip(File dir, File zipFile) throws IOException {

    87         ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));

    88         for (File file: dir.listFiles()) {

    89             if (file.isFile()) {

    90                 byte[] data = new byte[(int) file.length()];

    91                 DataInputStream in = new DataInputStream(new FileInputStream(file));

    92                 in.readFully(data);

    93                 in.close();

    94                 zipOut.putNextEntry(new ZipEntry(file.getName()));

    95                 zipOut.write(data, 0, data.length);

    96                 zipOut.closeEntry();

    97             }

    98         }

    99         zipOut.close();

   100         return zipFile;

   101     }

   103     String javap(String... args) {

   104         StringWriter sw = new StringWriter();

   105         PrintWriter out = new PrintWriter(sw);

   106         int rc = com.sun.tools.javap.Main.run(args, out);

   107         if (rc != 0)

   108             throw new Error("javap failed. rc=" + rc);

   109         out.close();

   110         return sw.toString();

   111     }

   113     void setProperty(String key, String value) {

   114         if (value != null)

   115             System.setProperty(key, value);

   116         else

   117             System.getProperties().remove(key);

   118     }

   119 }

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