73 lines
2.7 KiB
Java
73 lines
2.7 KiB
Java
/*
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* Copyright (c) 2021, 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 OldClassApp {
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public static void main(String args[]) throws Exception {
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String path = args[0];
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URL url = new File(path).toURI().toURL();
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URL[] urls = new URL[] {url};
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System.out.println(path);
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System.out.println(url);
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boolean inArchive = false;
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if (args[1].equals("true")) {
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inArchive = true;
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} else if (args[1].equals("false")) {
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inArchive = false;
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} else {
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throw new RuntimeException("args[1] can only be either \"true\" or \"false\", actual " + args[1]);
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}
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URLClassLoader urlClassLoader =
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new URLClassLoader("OldClassAppClassLoader", urls, null);
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for (int i = 2; i < args.length; i++) {
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Class c = urlClassLoader.loadClass(args[i]);
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System.out.println(c);
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System.out.println(c.getClassLoader());
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// [1] Check that class is defined by the correct loader
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if (c.getClassLoader() != urlClassLoader) {
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throw new RuntimeException("c.getClassLoader() == " + c.getClassLoader() +
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", expected == " + urlClassLoader);
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}
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// [2] Check that class is loaded from shared static archive.
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if (inArchive) {
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WhiteBox wb = WhiteBox.getWhiteBox();
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if (wb.isSharedClass(OldClassApp.class)) {
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if (!wb.isSharedClass(c)) {
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throw new RuntimeException("wb.isSharedClass(c) should be true");
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}
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}
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}
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}
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}
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}
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