131 lines
4.3 KiB
Java
131 lines
4.3 KiB
Java
/*
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* Copyright (c) 2009, 2017, 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 4735126
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* @summary (cl) ClassLoader.loadClass locks all instances in chain when delegating
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* @modules java.base/java.lang:open
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* jdk.compiler
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* @library /test/lib
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* @build jdk.test.lib.compiler.CompilerUtils
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* @run main/othervm -Xlog:class+load DelegateTest one-way
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* @run main/othervm -Xlog:class+load DelegateTest cross
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*/
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import java.io.File;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import jdk.test.lib.compiler.CompilerUtils;
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public class DelegateTest implements Runnable {
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private static final Path TEST_DIR = Paths.get(System.getProperty("user.dir", "."));
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private static final Path SRC_DIR = Paths.get(System.getProperty("test.src"), "src");
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private String id;
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private DelegatingLoader dl;
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private String startClass;
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private static DelegatingLoader saLoader, sbLoader;
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public static void log(String line) {
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System.out.println(line);
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}
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public static void main(String[] args) throws Exception {
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if (!CompilerUtils.compile(SRC_DIR, TEST_DIR)) {
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throw new RuntimeException("Failed to compile "
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+ SRC_DIR.toAbsolutePath().toString());
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}
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URL[] url = new URL[1];
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try {
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url[0] = new URL("file://" + TEST_DIR + File.separator);
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} catch (MalformedURLException e) {
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e.printStackTrace();
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}
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// Set up Classloader delegation hierarchy
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saLoader = new DelegatingLoader(url);
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sbLoader = new DelegatingLoader(url);
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String[] saClasses = { "comSA.SupBob", "comSA.Alice" };
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String[] sbClasses = { "comSB.SupAlice", "comSB.Bob" };
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saLoader.setDelegate(sbClasses, sbLoader);
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sbLoader.setDelegate(saClasses, saLoader);
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// test one-way delegate
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String testType = args[0];
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if (testType.equals("one-way")) {
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test("comSA.Alice", "comSA.SupBob");
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} else if (testType.equals("cross")) {
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// test cross delegate
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test("comSA.Alice", "comSB.Bob");
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} else {
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System.out.println("ERROR: unsupported - " + testType);
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}
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}
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private static void test(String clsForSA, String clsForSB) throws InterruptedException {
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DelegateTest ia = new DelegateTest("SA", saLoader, clsForSA);
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DelegateTest ib = new DelegateTest("SB", sbLoader, clsForSB);
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Thread ta = new Thread(ia);
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Thread tb = new Thread(ib);
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ta.start();
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tb.start();
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ta.join();
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tb.join();
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}
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public static void sleep() {
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try {
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Thread.sleep(500);
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} catch (InterruptedException e) {
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e.printStackTrace();
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log("Thread interrupted");
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}
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}
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private DelegateTest(String id, DelegatingLoader dl, String startClass) {
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this.id = id;
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this.dl = dl;
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this.startClass = startClass;
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}
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public void run() {
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log("Spawned thread " + id + " running");
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try {
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// To mirror the WAS deadlock, need to ensure class load
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// is routed via the VM.
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Class.forName(startClass, true, dl);
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} catch (ClassNotFoundException e) {
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e.printStackTrace();
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}
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log("Thread " + id + " terminating");
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}
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}
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