/* * Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. */ /* * @test * @bug 6456269 * @summary Test that an MBeanException serialized on JDK 6 deserializes * correctly on JDK 7. * @author Eamonn McManus */ import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import javax.management.MBeanException; // In JDK 6, the Throwable.cause field was always null for an MBeanException, // but it didn't matter because we overrode getCause() to return // MBeanException.exception instead. In JDK 7, we no longer override getCause() // because MBeanException doubles as the serial form of GenericMBeanException. // So we need some care to make sure that objects deserialized from JDK 6 // have the right getCause() behaviour. public class MBeanExceptionInteropTest { private static final byte[] SERIALIZED_MBEAN_EXCEPTION = { -84,-19,0,5,115,114,0,31,106,97,118,97,120,46,109,97, 110,97,103,101,109,101,110,116,46,77,66,101,97,110,69,120, 99,101,112,116,105,111,110,56,110,-116,-27,110,87,49,-50,2, 0,1,76,0,9,101,120,99,101,112,116,105,111,110,116,0, 21,76,106,97,118,97,47,108,97,110,103,47,69,120,99,101, 112,116,105,111,110,59,120,114,0,28,106,97,118,97,120,46, 109,97,110,97,103,101,109,101,110,116,46,74,77,69,120,99, 101,112,116,105,111,110,4,-35,76,-20,-109,-99,126,113,2,0, 0,120,114,0,19,106,97,118,97,46,108,97,110,103,46,69, 120,99,101,112,116,105,111,110,-48,-3,31,62,26,59,28,-60, 2,0,0,120,114,0,19,106,97,118,97,46,108,97,110,103, 46,84,104,114,111,119,97,98,108,101,-43,-58,53,39,57,119, -72,-53,3,0,3,76,0,5,99,97,117,115,101,116,0,21, 76,106,97,118,97,47,108,97,110,103,47,84,104,114,111,119, 97,98,108,101,59,76,0,13,100,101,116,97,105,108,77,101, 115,115,97,103,101,116,0,18,76,106,97,118,97,47,108,97, 110,103,47,83,116,114,105,110,103,59,91,0,10,115,116,97, 99,107,84,114,97,99,101,116,0,30,91,76,106,97,118,97, 47,108,97,110,103,47,83,116,97,99,107,84,114,97,99,101, 69,108,101,109,101,110,116,59,120,112,113,0,126,0,8,116, 0,7,79,104,32,100,101,97,114,117,114,0,30,91,76,106, 97,118,97,46,108,97,110,103,46,83,116,97,99,107,84,114, 97,99,101,69,108,101,109,101,110,116,59,2,70,42,60,60, -3,34,57,2,0,0,120,112,0,0,0,2,115,114,0,27, 106,97,118,97,46,108,97,110,103,46,83,116,97,99,107,84, 114,97,99,101,69,108,101,109,101,110,116,97,9,-59,-102,38, 54,-35,-123,2,0,4,73,0,10,108,105,110,101,78,117,109, 98,101,114,76,0,14,100,101,99,108,97,114,105,110,103,67, 108,97,115,115,113,0,126,0,6,76,0,8,102,105,108,101, 78,97,109,101,113,0,126,0,6,76,0,10,109,101,116,104, 111,100,78,97,109,101,113,0,126,0,6,120,112,0,0,0, 63,116,0,25,77,66,101,97,110,69,120,99,101,112,116,105, 111,110,73,110,116,101,114,111,112,84,101,115,116,116,0,30, 77,66,101,97,110,69,120,99,101,112,116,105,111,110,73,110, 116,101,114,111,112,84,101,115,116,46,106,97,118,97,116,0, 5,119,114,105,116,101,115,113,0,126,0,12,0,0,0,46, 113,0,126,0,14,113,0,126,0,15,116,0,4,109,97,105, 110,120,115,114,0,34,106,97,118,97,46,108,97,110,103,46, 73,108,108,101,103,97,108,65,114,103,117,109,101,110,116,69, 120,99,101,112,116,105,111,110,-75,-119,115,-45,125,102,-113,-68, 2,0,0,120,114,0,26,106,97,118,97,46,108,97,110,103, 46,82,117,110,116,105,109,101,69,120,99,101,112,116,105,111, 110,-98,95,6,71,10,52,-125,-27,2,0,0,120,113,0,126, 0,3,113,0,126,0,21,116,0,3,66,97,100,117,113,0, 126,0,10,0,0,0,2,115,113,0,126,0,12,0,0,0, 62,113,0,126,0,14,113,0,126,0,15,113,0,126,0,16, 115,113,0,126,0,12,0,0,0,46,113,0,126,0,14,113, 0,126,0,15,113,0,126,0,18,120, }; private static volatile String failure; public static void main(String[] args) throws Exception { if (args.length > 0) { if (args[0].equals("write") && args.length == 1) { write(); return; } else { System.err.println( "Usage: java MBeanExceptionInteropTest"); System.err.println( "or: java MBeanExceptionInteropTest write"); System.exit(1); } } // Read the serialized object and check it is correct. ByteArrayInputStream bin = new ByteArrayInputStream(SERIALIZED_MBEAN_EXCEPTION); ObjectInputStream oin = new ObjectInputStream(bin); MBeanException mbeanEx = (MBeanException) oin.readObject(); assertEquals("MBeanException message", "Oh dear", mbeanEx.getMessage()); System.out.println("getCause(): " + mbeanEx.getCause() + "; " + "getTargetException(): " + mbeanEx.getTargetException()); for (Throwable t : new Throwable[] {mbeanEx.getCause(), mbeanEx.getTargetException()}) { if (!(t instanceof IllegalArgumentException)) fail("Nested exception not an IllegalArgumentException: " + t); else assertEquals("Nested exception message", "Bad", t.getMessage()); } if (failure == null) System.out.println("TEST PASSED"); else throw new Exception("TEST FAILED: " + failure); } // Write a file that can be inserted into this source file as the // contents of the SERIALIZED_MBEAN_EXCEPTION array. Run this program // on JDK 6 to generate the array, then test on JDK 7. private static void write() throws Exception { Exception wrapped = new IllegalArgumentException("Bad"); MBeanException mbeanEx = new MBeanException(wrapped, "Oh dear"); ByteArrayOutputStream bout = new ByteArrayOutputStream(); ObjectOutputStream oout = new ObjectOutputStream(bout); oout.writeObject(mbeanEx); oout.close(); byte[] bytes = bout.toByteArray(); for (int i = 0; i < bytes.length; i++) { System.out.printf("%d,", bytes[i]); if (i % 16 == 15) System.out.println(); } if (bytes.length % 16 != 0) System.out.println(); } private static void assertEquals(String what, Object expect, Object actual) { boolean equal = (expect == null) ? (actual == null) : expect.equals(actual); if (equal) System.out.println("OK: " + what + ": " + expect); else fail(what + ": expected " + expect + ", got " + actual); } private static void fail(String why) { System.out.println("FAIL: " + why); failure = why; } }