114 lines
4.4 KiB
Java
114 lines
4.4 KiB
Java
/*
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* Copyright (c) 2004, 2015, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 5056248
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* @summary Test that an MBeanInfo works even if it is deserialized from
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* an implementation where its array fields can be null.
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* @author Eamonn McManus
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*
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* @run clean NullInfoArraysTest
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* @run build NullInfoArraysTest
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* @run main NullInfoArraysTest
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*/
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import java.io.*;
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import javax.management.*;
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import javax.management.modelmbean.*;
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import javax.management.openmbean.*;
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public class NullInfoArraysTest {
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public static void main(String[] args) throws Exception {
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if (args.length > 0 && args[0].equals("write"))
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writeSerializedForms();
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else
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testSerializedForms();
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}
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private static void testSerializedForms() throws Exception {
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byte[][] serializedMBeanInfos =
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SerializedMBeanInfo.serializedMBeanInfos;
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for (int i = 0; i < serializedMBeanInfos.length; i++) {
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byte[] serializedMBeanInfo = serializedMBeanInfos[i];
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ByteArrayInputStream bis =
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new ByteArrayInputStream(serializedMBeanInfo);
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ObjectInputStream ois = new ObjectInputStream(bis);
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MBeanInfo mbi = (MBeanInfo) ois.readObject();
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System.out.println("Testing a " +
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mbi.getClass().getName() + "...");
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if (mbi.getAttributes() == null ||
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mbi.getOperations() == null ||
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mbi.getConstructors() == null ||
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mbi.getNotifications() == null)
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throw new Exception("At least one getter returned null");
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System.out.println("OK");
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}
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System.out.println("Test passed");
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}
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/* This method is intended to be invoked when constructing the
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test for the first time, with JMX 1.1 RI in the classpath. It
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constructs the SerializedMBeanInfo.java source file. There is
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of course a chicken-and-egg problem for compiling: the first
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time we built this test, we supplied a trivial
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SerializedMBeanInfo.java with an empty array in the
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serializedMBeanInfos field. */
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private static void writeSerializedForms() throws Exception {
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OutputStream fos = new FileOutputStream("SerializedMBeanInfo.java");
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PrintWriter w = new PrintWriter(fos);
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w.println("// Generated by NullInfoArraysTest - do not edit");
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w.println();
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w.println("public class SerializedMBeanInfo {");
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w.println(" public static final byte[][] serializedMBeanInfos = {");
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writeSerial(w, new MBeanInfo(null, null, null, null, null, null));
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writeSerial(w, new ModelMBeanInfoSupport(null, null, null, null, null,
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null, null));
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writeSerial(w, new OpenMBeanInfoSupport(null, null, null, null, null,
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null));
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w.println(" };");
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w.println("}");
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w.close();
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fos.close();
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System.out.println("Wrote SerializedMBeanInfo.java");
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}
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private static void writeSerial(PrintWriter w, Object o) throws Exception {
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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ObjectOutputStream oos = new ObjectOutputStream(bos);
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oos.writeObject(o);
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oos.close();
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byte[] bytes = bos.toByteArray();
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w.print(" {");
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for (int i = 0; i < bytes.length; i++) {
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w.print(bytes[i]);
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w.print(", ");
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}
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w.println("},");
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}
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}
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