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test/java/lang/ClassLoader/deadlock/DelegateTest.java
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@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2009, 2017, 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.
@@ -19,14 +19,34 @@
* 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 4735126
+ * @summary (cl) ClassLoader.loadClass locks all instances in chain when delegating
+ * @modules java.base/java.lang:open
+ * jdk.compiler
+ * @library /test/lib
+ * @build jdk.test.lib.compiler.CompilerUtils
+ * @run main/othervm -Xlog:class+load DelegateTest one-way
+ * @run main/othervm -Xlog:class+load DelegateTest cross
+ */
+
+import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import jdk.test.lib.compiler.CompilerUtils;
-public class Starter implements Runnable {
+public class DelegateTest implements Runnable {
+
+ private static final Path TEST_DIR = Paths.get(System.getProperty("user.dir", "."));
+ private static final Path SRC_DIR = Paths.get(System.getProperty("test.src"), "src");
private String id;
private DelegatingLoader dl;
private String startClass;
@@ -34,24 +54,25 @@
public static void log(String line) {
System.out.println(line);
}
- public static void main(String[] args) {
- URL[] urlsa = new URL[1];
- URL[] urlsb = new URL[1];
+ public static void main(String[] args) throws Exception {
+ if (!CompilerUtils.compile(SRC_DIR, TEST_DIR)) {
+ throw new RuntimeException("Failed to compile "
+ + SRC_DIR.toAbsolutePath().toString());
+ }
+
+ URL[] url = new URL[1];
try {
- String testDir = System.getProperty("test.classes", ".");
- String sep = System.getProperty("file.separator");
- urlsa[0] = new URL("file://" + testDir + sep + "SA" + sep);
- urlsb[0] = new URL("file://" + testDir + sep + "SB" + sep);
+ url[0] = new URL("file://" + TEST_DIR + File.separator);
} catch (MalformedURLException e) {
e.printStackTrace();
}
// Set up Classloader delegation hierarchy
- saLoader = new DelegatingLoader(urlsa);
- sbLoader = new DelegatingLoader(urlsb);
+ saLoader = new DelegatingLoader(url);
+ sbLoader = new DelegatingLoader(url);
String[] saClasses = { "comSA.SupBob", "comSA.Alice" };
String[] sbClasses = { "comSB.SupAlice", "comSB.Bob" };
saLoader.setDelegate(sbClasses, sbLoader);
@@ -67,15 +88,19 @@
} else {
System.out.println("ERROR: unsupported - " + testType);
}
}
- private static void test(String clsForSA, String clsForSB) {
- Starter ia = new Starter("SA", saLoader, clsForSA);
- Starter ib = new Starter("SB", sbLoader, clsForSB);
- new Thread(ia).start();
- new Thread(ib).start();
+ private static void test(String clsForSA, String clsForSB) throws InterruptedException {
+ DelegateTest ia = new DelegateTest("SA", saLoader, clsForSA);
+ DelegateTest ib = new DelegateTest("SB", sbLoader, clsForSB);
+ Thread ta = new Thread(ia);
+ Thread tb = new Thread(ib);
+ ta.start();
+ tb.start();
+ ta.join();
+ tb.join();
}
public static void sleep() {
try {
Thread.sleep(500);
@@ -83,11 +108,11 @@
e.printStackTrace();
log("Thread interrupted");
}
}
- private Starter(String id, DelegatingLoader dl, String startClass) {
+ private DelegateTest(String id, DelegatingLoader dl, String startClass) {
this.id = id;
this.dl = dl;
this.startClass = startClass;
}
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