J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2000 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* @test |
| 25 | * @summary Verifies basic correct functioning of proxy serialization. |
| 26 | */ |
| 27 | |
| 28 | import java.io.*; |
| 29 | import java.lang.reflect.*; |
| 30 | import java.util.Random; |
| 31 | |
| 32 | // proxy interfaces |
| 33 | interface Foo { int foo(); } |
| 34 | interface Bar { float bar(); } |
| 35 | |
| 36 | // dummy invocation handler |
| 37 | class Handler implements InvocationHandler, Serializable { |
| 38 | |
| 39 | static Method fooMethod, barMethod; |
| 40 | static { |
| 41 | try { |
| 42 | fooMethod = Foo.class.getDeclaredMethod("foo", new Class[0]); |
| 43 | barMethod = Bar.class.getDeclaredMethod("bar", new Class[0]); |
| 44 | } catch (NoSuchMethodException ex) { |
| 45 | throw new Error(); |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | int foo; |
| 50 | float bar; |
| 51 | |
| 52 | Handler(int foo, float bar) { |
| 53 | this.foo = foo; |
| 54 | this.bar = bar; |
| 55 | } |
| 56 | |
| 57 | public Object invoke(Object proxy, Method method, Object[] args) |
| 58 | throws Throwable |
| 59 | { |
| 60 | if (method.equals(fooMethod)) { |
| 61 | return new Integer(foo); |
| 62 | } else if (method.equals(barMethod)) { |
| 63 | return new Float(bar); |
| 64 | } else { |
| 65 | throw new UnsupportedOperationException(); |
| 66 | } |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | // ObjectInputStream incapable of resolving proxy classes |
| 71 | class ProxyBlindInputStream extends ObjectInputStream { |
| 72 | |
| 73 | ProxyBlindInputStream(InputStream in) throws IOException { super(in); } |
| 74 | |
| 75 | protected Class resolveProxyClass(String[] interfaces) |
| 76 | throws IOException, ClassNotFoundException |
| 77 | { |
| 78 | throw new ClassNotFoundException(); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | public class Basic { |
| 83 | public static void main(String[] args) throws Exception { |
| 84 | ClassLoader loader = ClassLoader.getSystemClassLoader(); |
| 85 | Class[] interfaces = new Class[] { Foo.class, Bar.class }; |
| 86 | Random rand = new Random(); |
| 87 | int foo = rand.nextInt(); |
| 88 | float bar = rand.nextFloat(); |
| 89 | ObjectOutputStream oout; |
| 90 | ObjectInputStream oin; |
| 91 | ByteArrayOutputStream bout; |
| 92 | Object proxy; |
| 93 | |
| 94 | |
| 95 | // test simple proxy write + read |
| 96 | bout = new ByteArrayOutputStream(); |
| 97 | oout = new ObjectOutputStream(bout); |
| 98 | oout.writeObject(Proxy.newProxyInstance( |
| 99 | loader, interfaces, new Handler(foo, bar))); |
| 100 | oout.close(); |
| 101 | |
| 102 | oin = new ObjectInputStream( |
| 103 | new ByteArrayInputStream(bout.toByteArray())); |
| 104 | proxy = oin.readObject(); |
| 105 | if ((((Foo) proxy).foo() != foo) || (((Bar) proxy).bar() != bar)) { |
| 106 | throw new Error(); |
| 107 | } |
| 108 | |
| 109 | |
| 110 | // test missing proxy class ClassNotFoundException |
| 111 | oin = new ProxyBlindInputStream( |
| 112 | new ByteArrayInputStream(bout.toByteArray())); |
| 113 | try { |
| 114 | oin.readObject(); |
| 115 | throw new Error(); |
| 116 | } catch (ClassNotFoundException ex) { |
| 117 | } |
| 118 | } |
| 119 | } |