104 lines
3.9 KiB
Java
104 lines
3.9 KiB
Java
/*
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* Copyright (c) 1999, 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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/* @test
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* @bug 4258644
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* @summary ObjectInputStream's default implementation of its protected
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* resolveProxyClass method is specified to pass the first non-null class
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* loader up the execution stack to the Proxy.getProxyClass method when
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* it creates the specified proxy class; this test makes sure that it does
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* that in situations where it hadn't in the past, such as if the defining
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* loaders of the interfaces were all strict ancestors of the first
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* non-null loader up the stack.
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* @author Peter Jones
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*
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* @build ResolveProxyClass
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* @run main ResolveProxyClass
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*/
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import java.io.*;
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public class ResolveProxyClass {
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/*
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* This class is a dummy ObjectInputStream subclass that allows the
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* test code to access ObjectInputStream's protected resolveProxyClass
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* method directly.
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*/
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private static class TestObjectInputStream extends ObjectInputStream {
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TestObjectInputStream() throws IOException {
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super();
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}
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protected Class<?> resolveProxyClass(String[] interfaces)
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throws IOException, ClassNotFoundException
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{
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return super.resolveProxyClass(interfaces);
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}
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}
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public static void main(String[] args) {
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System.err.println("\nRegression test for bug 4258644\n");
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try {
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/*
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* Set this thread's context class loader to null, so that the
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* resolveProxyClass implementation cannot cheat by guessing that
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* the context class loader is the appropriate loader to pass to
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* the Proxy.getProxyClass method.
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*/
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Thread.currentThread().setContextClassLoader(null);
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/*
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* Expect the proxy class to be defined in the system class
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* loader, because that is the defining loader of this test
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* code, and it should be the first loader on the stack when
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* ObjectInputStream.resolveProxyClass gets executed.
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*/
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ClassLoader expectedLoader = ResolveProxyClass.class.getClassLoader();
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TestObjectInputStream in = new TestObjectInputStream();
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Class<?> proxyClass = in.resolveProxyClass(
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new String[] { Runnable.class.getName() });
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ClassLoader proxyLoader = proxyClass.getClassLoader();
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System.err.println("proxy class \"" + proxyClass +
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"\" defined in loader: " + proxyLoader);
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if (proxyLoader != expectedLoader) {
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throw new RuntimeException(
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"proxy class defined in loader: " + proxyLoader);
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}
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System.err.println("\nTEST PASSED");
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} catch (Throwable e) {
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System.err.println("\nTEST FAILED:");
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e.printStackTrace();
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throw new RuntimeException("TEST FAILED: " + e.toString());
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}
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}
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}
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