125 lines
4.4 KiB
Java
125 lines
4.4 KiB
Java
/*
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* Copyright (c) 2000, 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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* @test
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* @bug 4325590
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* @library /test/lib
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* @build jdk.test.lib.util.JarUtils A B
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* @run main SuperclassDataLossTest
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* @summary Verify that superclass data is not lost when incoming superclass
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* descriptor is matched with local class that is not a superclass of
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* the deserialized instance's class.
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*/
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.InputStream;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.ObjectStreamClass;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.net.MalformedURLException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.nio.file.StandardCopyOption;
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import jdk.test.lib.util.JarUtils;
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class MixedSuperclassStream extends ObjectInputStream {
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private boolean ldr12A;
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private URLClassLoader ldr1;
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private URLClassLoader ldr2;
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MixedSuperclassStream(InputStream in, URLClassLoader ldr1,
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URLClassLoader ldr2, boolean ldr1First) throws IOException {
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super(in);
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this.ldr1 = ldr1;
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this.ldr2 = ldr2;
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this.ldr12A = ldr12A;
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}
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protected Class<?> resolveClass(ObjectStreamClass desc)
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throws IOException, ClassNotFoundException
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{
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// resolve A's classdesc to class != B's superclass
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String name = desc.getName();
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if (ldr12A) {
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if (name.equals("A")) {
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return Class.forName(name, true, ldr1);
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} else if (name.equals("B")) {
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return Class.forName(name, true, ldr2);
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}
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} else {
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if (name.equals("B")) {
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return Class.forName(name, true, ldr1);
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} else if (name.equals("A")) {
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return Class.forName(name, true, ldr2);
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}
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}
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return super.resolveClass(desc);
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}
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}
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public class SuperclassDataLossTest {
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public static void main(String[] args) throws Exception {
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try (URLClassLoader ldr1 = new URLClassLoader(new URL[] { new URL("file:cb1.jar") });
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URLClassLoader ldr2 = new URLClassLoader(new URL[] { new URL("file:cb2.jar") })) {
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setup();
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Runnable a = (Runnable) Class.forName("B", true, ldr1)
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.getConstructor().newInstance();
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a.run();
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ByteArrayOutputStream bout = new ByteArrayOutputStream();
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ObjectOutputStream oout = new ObjectOutputStream(bout);
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oout.writeObject(a);
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oout.close();
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test(bout, ldr1, ldr2, true);
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test(bout, ldr1, ldr2, false);
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}
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}
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private static void test(ByteArrayOutputStream bout, URLClassLoader ldr1,
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URLClassLoader ldr2, boolean ldr12A) throws Exception {
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ByteArrayInputStream bin =
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new ByteArrayInputStream(bout.toByteArray());
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ObjectInputStream oin = new MixedSuperclassStream(bin, ldr1, ldr2, ldr12A);
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Runnable a = (Runnable) oin.readObject();
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a.run();
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}
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private static void setup() throws Exception {
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Path classes = Paths.get(System.getProperty("test.classes", ""));
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JarUtils.createJarFile(Paths.get("cb1.jar"), classes,
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classes.resolve("A.class"), classes.resolve("B.class"));
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Files.copy(Paths.get("cb1.jar"), Paths.get("cb2.jar"),
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StandardCopyOption.REPLACE_EXISTING);
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}
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}
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