| /* |
| * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @summary Verifies basic correct functioning of proxy serialization. |
| */ |
| |
| import java.io.*; |
| import java.lang.reflect.*; |
| import java.util.Random; |
| |
| // proxy interfaces |
| interface Foo { int foo(); } |
| interface Bar { float bar(); } |
| |
| // dummy invocation handler |
| class Handler implements InvocationHandler, Serializable { |
| |
| static Method fooMethod, barMethod; |
| static { |
| try { |
| fooMethod = Foo.class.getDeclaredMethod("foo", new Class[0]); |
| barMethod = Bar.class.getDeclaredMethod("bar", new Class[0]); |
| } catch (NoSuchMethodException ex) { |
| throw new Error(); |
| } |
| } |
| |
| int foo; |
| float bar; |
| |
| Handler(int foo, float bar) { |
| this.foo = foo; |
| this.bar = bar; |
| } |
| |
| public Object invoke(Object proxy, Method method, Object[] args) |
| throws Throwable |
| { |
| if (method.equals(fooMethod)) { |
| return new Integer(foo); |
| } else if (method.equals(barMethod)) { |
| return new Float(bar); |
| } else { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| } |
| |
| // ObjectInputStream incapable of resolving proxy classes |
| class ProxyBlindInputStream extends ObjectInputStream { |
| |
| ProxyBlindInputStream(InputStream in) throws IOException { super(in); } |
| |
| protected Class resolveProxyClass(String[] interfaces) |
| throws IOException, ClassNotFoundException |
| { |
| throw new ClassNotFoundException(); |
| } |
| } |
| |
| public class Basic { |
| public static void main(String[] args) throws Exception { |
| ClassLoader loader = ClassLoader.getSystemClassLoader(); |
| Class[] interfaces = new Class[] { Foo.class, Bar.class }; |
| Random rand = new Random(); |
| int foo = rand.nextInt(); |
| float bar = rand.nextFloat(); |
| ObjectOutputStream oout; |
| ObjectInputStream oin; |
| ByteArrayOutputStream bout; |
| Object proxy; |
| |
| |
| // test simple proxy write + read |
| bout = new ByteArrayOutputStream(); |
| oout = new ObjectOutputStream(bout); |
| oout.writeObject(Proxy.newProxyInstance( |
| loader, interfaces, new Handler(foo, bar))); |
| oout.close(); |
| |
| oin = new ObjectInputStream( |
| new ByteArrayInputStream(bout.toByteArray())); |
| proxy = oin.readObject(); |
| if ((((Foo) proxy).foo() != foo) || (((Bar) proxy).bar() != bar)) { |
| throw new Error(); |
| } |
| |
| |
| // test missing proxy class ClassNotFoundException |
| oin = new ProxyBlindInputStream( |
| new ByteArrayInputStream(bout.toByteArray())); |
| try { |
| oin.readObject(); |
| throw new Error(); |
| } catch (ClassNotFoundException ex) { |
| } |
| } |
| } |