jdk/test/java/net/URLClassLoader/closetest/GetResourceAsStream.java
author chegar
Wed, 13 Nov 2013 16:44:12 +0000
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parent 7983 fb83b663cadc
child 23010 6dadb192ad81
permissions -rw-r--r--
8022213: Intermittent test failures in java/net/URLClassLoader Reviewed-by: dxu, alanb
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/*
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 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/**
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 * @test
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 * @bug 6899919
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 * @library /lib/testlibrary
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 * @build jdk.testlibrary.FileUtils
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 * @run shell build2.sh
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 * @run main/othervm GetResourceAsStream
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 */
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import java.io.*;
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import java.net.*;
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public class GetResourceAsStream extends Common {
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/*
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 * We simply test various scenarios with class/resource files
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 * and make sure the files can be deleted after closing
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 * the loader. Therefore, the test will only really be verified
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 * on Windows. It will still run correctly on other platforms
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 */
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    public static void main (String args[]) throws Exception {
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        String workdir = System.getProperty("test.classes");
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        if (workdir == null) {
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            workdir = args[0];
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        }
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        /* the jar we copy for each test */
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        File srcfile = new File (workdir, "foo.jar");
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        /* the jar we use for the test */
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        File testfile = new File (workdir, "test.jar");
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        copyFile (srcfile, testfile);
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        test (testfile, false, false);
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        copyFile (srcfile, testfile);
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        test (testfile, true, false);
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        copyFile (srcfile, testfile);
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        test (testfile, true, true);
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        // repeat test using a directory of files
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        File testdir= new File (workdir, "testdir");
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        File srcdir= new File (workdir, "test3");
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        copyDir (srcdir, testdir);
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        test (testdir, true, false);
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    }
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    // create a loader on jarfile (or directory)
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    // load a class , then look for a resource
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    // then close the loader
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    // check further new classes/resources cannot be loaded
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    // check jar (or dir) can be deleted
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    static void test (File file, boolean loadclass, boolean readall)
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        throws Exception
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    {
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        URL[] urls = new URL[] {file.toURL()};
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        System.out.println ("Doing tests with URL: " + urls[0]);
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        URLClassLoader loader = new URLClassLoader (urls);
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        if (loadclass) {
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            Class testclass = loadClass ("com.foo.TestClass", loader, true);
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        }
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        InputStream s = loader.getResourceAsStream ("hello.txt");
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        s.read();
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        if (readall) {
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            while (s.read() != -1) ;
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            s.close();
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        }
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        loader.close ();
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        // shouuld not find bye.txt now
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        InputStream s1 = loader.getResourceAsStream("bye.txt");
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        if (s1 != null) {
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            throw new RuntimeException ("closed loader returned resource");
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        }
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        // now check we can delete the path
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        rm_minus_rf (file);
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        System.out.println (" ... OK");
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    }
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}