/* * Copyright (c) 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. */ /* * Portions Copyright (c) 2013 IBM Corporation */ /* @test * @bug 7183373 * @summary URLClassLoader fails to close handles to Jar files opened during * getResource() */ import java.io.*; import java.net.*; import java.util.zip.*; public class JarLoaderTest { public static void main(String[] args) throws Exception { // Create a JAR file File f = new File("urlcl" + 1 + ".jar"); ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(f)); // add a file zos.putNextEntry(new ZipEntry("TestResource")); byte[] b = "This is a test resource".getBytes(); zos.write(b, 0, b.length); zos.close(); // Load the file using cl.getResource() URLClassLoader cl = new URLClassLoader(new URL[] { new URL("jar:" + f.toURI().toURL() + "!/")}, null); cl.getResource("TestResource"); // Close the class loader - this should free up all of its Closeables, // including the JAR file cl.close(); // Try to delete the JAR file f.delete(); // Check to see if the file was deleted if (f.exists()) { System.out.println( "Test FAILED: Closeables failed to close handle to jar file"); // Delete the jar using a workaround for (URL u : cl.getURLs()) { if (u.getProtocol().equals("jar")) { ((JarURLConnection)u.openConnection()).getJarFile().close(); } f.delete(); } throw new RuntimeException("File could not be deleted"); } else { System.out.println("Test PASSED"); } } }