61e736cbae
Co-authored-by: Mikhailo Seledtsov <mikhailo.seledtsov@oracle.com> Co-authored-by: Calvin Cheung <calvin.cheung@oracle.com> Reviewed-by: dsamersoff, simonis, minqi
94 lines
3.4 KiB
Java
94 lines
3.4 KiB
Java
/*
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* Copyright (c) 2015, 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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/**
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* Used with -p or --upgrade-module-path to exercise the replacement
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* of classes in modules that are linked into the runtime image.
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*/
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import java.lang.*;
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import java.lang.reflect.*;
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import sun.hotspot.WhiteBox;
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public class LimitModsHelper {
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static final ClassLoader PLATFORM_LOADER = ClassLoader.getPlatformClassLoader();
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static final ClassLoader SYS_LOADER = ClassLoader.getSystemClassLoader();
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public static void main(String[] args) throws Exception {
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assertTrue(args.length == 4);
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String[] classNames = new String[3];
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for (int i = 0; i < 3; i++) {
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classNames[i] = args[i].replace('/', '.');
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}
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int excludeModIdx = Integer.parseInt(args[3]);
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ClassLoader expectedLoaders[] = {null, PLATFORM_LOADER, SYS_LOADER};
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WhiteBox wb = WhiteBox.getWhiteBox();
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Class<?> clazz = null;
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for (int i = 0; i < 3; i++) {
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try {
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// Load the class with the default ClassLoader.
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clazz = Class.forName(classNames[i]);
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} catch (Exception e) {
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if (i == excludeModIdx) {
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System.out.println(classNames[i] + " not found as expected because the module isn't in the --limit-modules - PASSED");
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} else {
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throw(e);
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}
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}
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if (clazz != null && i != excludeModIdx) {
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// Make sure we got the expected defining ClassLoader
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testLoader(clazz, expectedLoaders[i]);
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// Make sure the class is in the shared space
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if (!wb.isSharedClass(clazz)) {
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throw new RuntimeException(clazz.getName() +
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".class should be in the shared space. " +
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"loader=" + clazz.getClassLoader() + " module=" + clazz.getModule().getName());
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}
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}
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clazz = null;
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}
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}
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/**
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* Asserts that given class has the expected defining loader.
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*/
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static void testLoader(Class<?> clazz, ClassLoader expected) {
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ClassLoader loader = clazz.getClassLoader();
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if (loader != expected) {
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throw new RuntimeException(clazz + " loaded by " + loader + ", expected " + expected);
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}
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}
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static void assertTrue(boolean expr) {
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if (!expr)
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throw new RuntimeException("assertion failed");
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}
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}
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