107 lines
4.1 KiB
Java
107 lines
4.1 KiB
Java
/*
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* Copyright (c) 2015, 2023, 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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import java.lang.reflect.Constructor;
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import java.lang.reflect.InvocationHandler;
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import java.lang.reflect.Proxy;
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/*
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* @test
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* @summary Basic test of proxy module mapping and the access to Proxy class
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* @modules java.base/jdk.internal.misc
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*/
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public class ProxyModuleMapping {
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public static void main(String... args) throws Exception {
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ClassLoader ld = ProxyModuleMapping.class.getClassLoader();
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Module unnamed = ld.getUnnamedModule();
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new ProxyModuleMapping(Runnable.class).test();
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// unnamed module gets access to jdk.internal.misc package (e.g. via --add-exports)
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new ProxyModuleMapping(jdk.internal.misc.VM.BufferPool.class).test();
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Class<?> modulePrivateIntf = Class.forName("sun.net.PlatformSocketImpl");
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new ProxyModuleMapping(modulePrivateIntf).test();
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}
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final Module target;
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final ClassLoader loader;
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final Class<?>[] interfaces;
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ProxyModuleMapping(Module m, Class<?>... interfaces) {
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this.target = m;
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this.loader = m.getClassLoader();
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this.interfaces = interfaces;
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}
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ProxyModuleMapping(Class<?>... interfaces) {
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this.target = null; // expected to be dynamic module
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this.loader = interfaces[0].getClassLoader(); // same class loader
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this.interfaces = interfaces;
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}
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void test() throws Exception {
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verifyProxyClass();
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verifyNewProxyInstance();
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}
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void verifyProxyClass() throws Exception {
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Class<?> c = Proxy.getProxyClass(loader, interfaces);
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Module m = c.getModule();
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if (target != null && m != target) {
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throw new RuntimeException(c.getModule() + " not expected: " + target);
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}
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// expect dynamic module
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if (target == null && (!m.isNamed() || !m.getName().startsWith("jdk.proxy"))) {
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throw new RuntimeException("Unexpected:" + m);
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}
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Module module = c.getModule();
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try {
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Constructor<?> cons = c.getConstructor(InvocationHandler.class);
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cons.newInstance(ih);
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// the exported package name is same as the module name
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if (!c.getPackageName().equals(module.getName())) {
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throw new RuntimeException("expected IAE not thrown");
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}
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} catch (IllegalAccessException e) {
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// non-exported package from the dynamic module
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if (c.getPackageName().equals(module.getName())) {
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throw e;
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}
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}
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}
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void verifyNewProxyInstance() throws Exception {
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Object o = Proxy.newProxyInstance(loader, interfaces, ih);
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Module m = o.getClass().getModule();
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if (target != null && m != target) {
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throw new RuntimeException(m + " not expected: " + target);
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}
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if (target == null && (!m.isNamed() || !m.getName().startsWith("jdk.proxy"))) {
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throw new RuntimeException(m + " not expected: dynamic module");
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}
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}
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private final static InvocationHandler ih =
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(proxy, m, params) -> { System.out.println(m); return null; };
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}
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