102 lines
3.7 KiB
Java
102 lines
3.7 KiB
Java
/*
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* Copyright (c) 2015, 2019, 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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import java.io.File;
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import java.net.URL;
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import java.net.URLClassLoader;
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import sun.hotspot.WhiteBox;
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public class SameNameUnrelatedLoaders {
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public static void main(String args[]) throws Exception {
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String path = args[0];
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String testCase = args[1];
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URL url = new File(path).toURI().toURL();
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URL[] urls = new URL[] {url};
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ClassLoader appLoader = SameNameUnrelatedLoaders.class.getClassLoader();
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URLClassLoader ldr01 = null;
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URLClassLoader ldr02 = null;
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switch (testCase) {
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case "FpBoth":
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ldr01 = new URLClassLoader(urls);
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ldr02 = new URLClassLoader(urls);
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break;
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default:
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throw new IllegalArgumentException("Invalid testCase ID");
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}
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Class class01 = ldr01.loadClass("CustomLoadee");
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Class class02 = ldr02.loadClass("CustomLoadee");
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System.out.println("class01 = " + class01);
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System.out.println("class02 = " + class02);
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if (class01.getClassLoader() != ldr01) {
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throw new RuntimeException("class01 loaded by wrong loader");
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}
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if (class02.getClassLoader() != ldr02) {
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throw new RuntimeException("class02 loaded by wrong loader");
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}
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if (true) {
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if (class01.isAssignableFrom(class02)) {
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throw new RuntimeException("assignable condition failed");
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}
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Object obj01 = class01.newInstance();
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Object obj02 = class02.newInstance();
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if (class01.isInstance(obj02)) {
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throw new RuntimeException("instance relationship condition 01 failed");
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}
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if (class02.isInstance(obj01)) {
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throw new RuntimeException("instance relationship condition 02 failed");
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}
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}
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WhiteBox wb = WhiteBox.getWhiteBox();
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if (wb.isSharedClass(SameNameUnrelatedLoaders.class)) {
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boolean class1Shared = wb.isSharedClass(class01);
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boolean class2Shared = wb.isSharedClass(class02);
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if (testCase.equals("FpBoth")) {
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if (!class1Shared) {
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throw new RuntimeException("first class is not shared");
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}
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if (class2Shared) {
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throw new RuntimeException("second class is shared, " +
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"and it should not be - first come first serve violation");
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}
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} else {
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if (! (class1Shared && class2Shared) )
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throw new RuntimeException("both classes expected to be shared, but are not");
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}
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}
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}
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}
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