J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004 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 | /* |
| 25 | * @test |
| 26 | * @bug 5056248 |
| 27 | * @summary Test that an MBeanInfo works even if it is deserialized from |
| 28 | * an implementation where its array fields can be null. |
| 29 | * @author Eamonn McManus |
| 30 | * @run clean NullInfoArraysTest |
| 31 | * @run build NullInfoArraysTest |
| 32 | * @run main NullInfoArraysTest |
| 33 | */ |
| 34 | |
| 35 | import java.io.*; |
| 36 | import javax.management.*; |
| 37 | import javax.management.modelmbean.*; |
| 38 | import javax.management.openmbean.*; |
| 39 | |
| 40 | public class NullInfoArraysTest { |
| 41 | public static void main(String[] args) throws Exception { |
| 42 | if (args.length > 0 && args[0].equals("write")) |
| 43 | writeSerializedForms(); |
| 44 | else |
| 45 | testSerializedForms(); |
| 46 | } |
| 47 | |
| 48 | private static void testSerializedForms() throws Exception { |
| 49 | byte[][] serializedMBeanInfos = |
| 50 | SerializedMBeanInfo.serializedMBeanInfos; |
| 51 | for (int i = 0; i < serializedMBeanInfos.length; i++) { |
| 52 | byte[] serializedMBeanInfo = serializedMBeanInfos[i]; |
| 53 | ByteArrayInputStream bis = |
| 54 | new ByteArrayInputStream(serializedMBeanInfo); |
| 55 | ObjectInputStream ois = new ObjectInputStream(bis); |
| 56 | MBeanInfo mbi = (MBeanInfo) ois.readObject(); |
| 57 | |
| 58 | System.out.println("Testing a " + |
| 59 | mbi.getClass().getName() + "..."); |
| 60 | |
| 61 | if (mbi.getAttributes() == null || |
| 62 | mbi.getOperations() == null || |
| 63 | mbi.getConstructors() == null || |
| 64 | mbi.getNotifications() == null) |
| 65 | throw new Exception("At least one getter returned null"); |
| 66 | |
| 67 | System.out.println("OK"); |
| 68 | } |
| 69 | |
| 70 | System.out.println("Test passed"); |
| 71 | } |
| 72 | |
| 73 | /* This method is intended to be invoked when constructing the |
| 74 | test for the first time, with JMX 1.1 RI in the classpath. It |
| 75 | constructs the SerializedMBeanInfo.java source file. There is |
| 76 | of course a chicken-and-egg problem for compiling: the first |
| 77 | time we built this test, we supplied a trivial |
| 78 | SerializedMBeanInfo.java with an empty array in the |
| 79 | serializedMBeanInfos field. */ |
| 80 | private static void writeSerializedForms() throws Exception { |
| 81 | OutputStream fos = new FileOutputStream("SerializedMBeanInfo.java"); |
| 82 | PrintWriter w = new PrintWriter(fos); |
| 83 | w.println("// Generated by NullInfoArraysTest - do not edit"); |
| 84 | w.println(); |
| 85 | w.println("public class SerializedMBeanInfo {"); |
| 86 | w.println(" public static final byte[][] serializedMBeanInfos = {"); |
| 87 | writeSerial(w, new MBeanInfo(null, null, null, null, null, null)); |
| 88 | writeSerial(w, new ModelMBeanInfoSupport(null, null, null, null, null, |
| 89 | null, null)); |
| 90 | writeSerial(w, new OpenMBeanInfoSupport(null, null, null, null, null, |
| 91 | null)); |
| 92 | w.println(" };"); |
| 93 | w.println("}"); |
| 94 | w.close(); |
| 95 | fos.close(); |
| 96 | System.out.println("Wrote SerializedMBeanInfo.java"); |
| 97 | } |
| 98 | |
| 99 | private static void writeSerial(PrintWriter w, Object o) throws Exception { |
| 100 | ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| 101 | ObjectOutputStream oos = new ObjectOutputStream(bos); |
| 102 | oos.writeObject(o); |
| 103 | oos.close(); |
| 104 | byte[] bytes = bos.toByteArray(); |
| 105 | w.print(" {"); |
| 106 | for (int i = 0; i < bytes.length; i++) { |
| 107 | w.print(bytes[i]); |
| 108 | w.print(", "); |
| 109 | } |
| 110 | w.println("},"); |
| 111 | } |
| 112 | } |