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