author | rriggs |
Fri, 11 Oct 2019 13:11:56 -0400 | |
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/* |
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* Copyright (c) 2002, 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 4765255 |
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* @library /test/lib |
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* @build jdk.test.lib.util.JarUtils A B C D PackageAccessTest |
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* @run main PackageAccessTest |
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* @summary Verify proper functioning of package equality checks used to |
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* determine accessibility of superclass constructor and inherited |
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* writeReplace/readResolve methods. |
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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.io.InvalidClassException; |
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import java.net.URL; |
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import java.net.URLClassLoader; |
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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 jdk.test.lib.util.JarUtils; |
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public class PackageAccessTest { |
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static Class<?> bcl; |
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static Class<?> dcl; |
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public static void main(String[] args) throws Exception { |
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setup(); |
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try (URLClassLoader ldr = |
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new URLClassLoader(new URL[]{ new URL("file:foo.jar") }, |
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PackageAccessTest.class.getClassLoader())) { |
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bcl = Class.forName("B", true, ldr); |
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dcl = Class.forName("D", true, ldr); |
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Object b = bcl.getConstructor().newInstance(); |
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try { |
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swizzle(b); |
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throw new Error("expected InvalidClassException for class B"); |
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} catch (InvalidClassException e) { |
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System.out.println("caught " + e); |
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e.printStackTrace(); |
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} |
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if (A.packagePrivateConstructorInvoked) { |
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throw new Error("package private constructor of A invoked"); |
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} |
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Object d = dcl.getConstructor().newInstance(); |
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swizzle(d); |
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} |
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} |
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static void swizzle(Object obj) throws Exception { |
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ByteArrayOutputStream bout = new ByteArrayOutputStream(); |
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ObjectOutputStream oout = new ObjectOutputStream(bout); |
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oout.writeObject(obj); |
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oout.close(); |
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ByteArrayInputStream bin = |
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new ByteArrayInputStream(bout.toByteArray()); |
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new TestObjectInputStream(bin).readObject(); |
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} |
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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("foo.jar"), classes, |
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classes.resolve("B.class"), classes.resolve("D.class")); |
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Files.delete(classes.resolve("B.class")); |
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Files.delete(classes.resolve("D.class")); |
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} |
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} |
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class TestObjectInputStream extends ObjectInputStream { |
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TestObjectInputStream(InputStream in) throws IOException { |
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super(in); |
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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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String n = desc.getName(); |
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if (n.equals("B")) { |
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return PackageAccessTest.bcl; |
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} else if (n.equals("D")) { |
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return PackageAccessTest.dcl; |
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} else { |
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return super.resolveClass(desc); |
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} |
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} |
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} |