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/*
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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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import java.io.*;
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import java.net.*;
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import sun.hotspot.WhiteBox;
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public class LoaderSegregation {
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// Use these definitions instead of literal strings, to avoid typos.
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static final String ONLY_BUILTIN = "OnlyBuiltin";
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static final String ONLY_UNREGISTERED = "OnlyUnregistered";
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public static void main(String args[]) throws Exception {
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WhiteBox wb = WhiteBox.getWhiteBox();
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// [A] An archived BUILTIN class cannot be a subclass of a non-BUILTIN class.
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// [B] An archived BUILTIN class cannot implement a non-BUILTIN interface.
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if (wb.isSharedClass(LoaderSegregation.class)) {
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// [1] check that CustomLoadee is loadable from archive
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if (!wb.isSharedClass(CustomLoadee.class)) {
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throw new RuntimeException("wb.isSharedClass(CustomLoadee.class) should be true");
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}
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// [2] CustomInterface2_ia should be archived, even though it was not specified in the classlist.
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// It was successfully dumped as a side effect of attempting to load CustomLoadee2
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// during dump time. Note that CustomLoadee2 failed to dump because one of its interfaces,
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// CustomInterface2_ib, was not loadable from the BOOT/EXT/APP classpath. during dump time.
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if (!wb.isSharedClass(CustomInterface2_ia.class)) {
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throw new RuntimeException("wb.isSharedClass(CustomInterface2_ia.class) should be true");
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}
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// [3] Check that the BUILTIN versions of CustomLoadee2 and CustomLoadee3Child are loadable
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// at run time (since we have append LoaderSegregation_app2.jar the classpath),
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// but these classes must be loaded from the JAR file.
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if (wb.isSharedClass(CustomLoadee2.class)) {
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throw new RuntimeException("wb.isSharedClass(CustomLoadee2.class) should be false");
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}
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if (wb.isSharedClass(CustomLoadee3.class)) {
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throw new RuntimeException("wb.isSharedClass(CustomLoadee3.class) should be false");
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}
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if (wb.isSharedClass(CustomLoadee3Child.class)) {
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throw new RuntimeException("wb.isSharedClass(CustomLoadee3Child.class) should be false");
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}
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}
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// [C] BUILTIN and UNREGISTERED classes can be loaded only by their corresponding
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// type of loaders.
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String path = args[0];
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File jarFile = new File(path);
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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 = LoaderSegregation.class.getClassLoader();
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{ // BUILTIN LOADER
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try {
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appLoader.loadClass(ONLY_UNREGISTERED);
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throw new RuntimeException("BUILTIN loader cannot load archived UNREGISTERED class");
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} catch (ClassNotFoundException expected) {}
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}
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{ // UNREGISTERED LOADER
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URLClassLoader urlClassLoader = new URLClassLoader(urls);
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Class c2 = Util.defineClassFromJAR(urlClassLoader, jarFile, ONLY_BUILTIN);
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if (c2.getClassLoader() != urlClassLoader) {
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throw new RuntimeException("Error in test");
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}
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if (wb.isSharedClass(LoaderSegregation.class)) {
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if (wb.isSharedClass(c2)) {
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throw new RuntimeException("wb.isSharedClass(c2) should be false - " +
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"unregistered loader cannot load an archived BUILTIN class");
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}
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}
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}
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}
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}
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