| /* |
| * Copyright 2014 Goldman Sachs. |
| * Copyright (c) 2014, 2015, 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 7142035 |
| * @summary Assert in java.lang.instrument agents during shutdown when classloading occurs after shutdown |
| * @library /lib/testlibrary |
| * |
| * @modules java.instrument |
| * java.management |
| * @build jdk.testlibrary.* DummyAgent DummyClass TestDaemonThreadLauncher TestDaemonThread |
| * @run shell ../MakeJAR3.sh DummyAgent |
| * @run main/timeout=240 TestDaemonThreadLauncher |
| * |
| */ |
| import java.io.File; |
| import java.net.URL; |
| import java.net.URLClassLoader; |
| |
| public class TestDaemonThread implements Runnable{ |
| File classpath; |
| |
| public TestDaemonThread(File classpath) { |
| this.classpath = classpath; |
| } |
| |
| @Override |
| public void run() { |
| |
| |
| try { |
| URL u = this.getClass().getClassLoader().getResource("DummyClass.class"); |
| String path = u.getPath(); |
| String parent = u.getPath().substring(0, path.lastIndexOf('/')+1); |
| URL parentURL = new URL(u, parent); |
| System.out.println(parentURL); |
| /* Load lots of class by creating multiple classloaders */ |
| for(;;) { |
| ClassLoader cl = new URLClassLoader(new URL[] {parentURL}, null); |
| cl.loadClass("DummyClass"); |
| } |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| Thread t = new Thread(new TestDaemonThread(new File(args[0]))); |
| /* The important part of the bug is that a Daemon thread can continue to load classes after shutdown */ |
| t.setDaemon(true); |
| t.start(); |
| Thread.sleep(200); |
| } |
| } |