1 /*
   2  * Copyright (c) 2006, 2015, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 6359948
  27  * @summary Check that MXBean operations have the expected ReturnType in MBeanOperationInfo
  28  * @author Luis-Miguel Alventosa
  29  *
  30  * @run clean MBeanOperationInfoTest
  31  * @run build MBeanOperationInfoTest
  32  * @run main MBeanOperationInfoTest
  33  */
  34 
  35 import java.lang.management.*;
  36 import javax.management.*;
  37 import javax.management.openmbean.*;
  38 
  39 public class MBeanOperationInfoTest {
  40     private static final String[][] returnTypes = {
  41         { "dumpAllThreads(boolean,boolean)", "[Ljavax.management.openmbean.CompositeData;" },
  42         { "findDeadlockedThreads()", "[J" },
  43         { "findMonitorDeadlockedThreads()", "[J" },
  44         { "getThreadInfo(long)","javax.management.openmbean.CompositeData"},
  45         { "getThreadInfo(long,int)","javax.management.openmbean.CompositeData"},
  46         { "getThreadInfo([J)","[Ljavax.management.openmbean.CompositeData;"},
  47         { "getThreadInfo([J,int)","[Ljavax.management.openmbean.CompositeData;"},
  48         { "getThreadInfo([J,boolean,boolean)","[Ljavax.management.openmbean.CompositeData;"},
  49         { "getThreadCpuTime(long)","long"},
  50         { "getThreadUserTime(long)","long"},
  51         { "resetPeakThreadCount()","void"},
  52     };
  53     public static void main(String[] args) throws Exception {
  54         int error = 0;
  55         int tested = 0;
  56         MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
  57         ObjectName on = new ObjectName(ManagementFactory.THREAD_MXBEAN_NAME);
  58         MBeanInfo mbi = mbs.getMBeanInfo(on);
  59         MBeanOperationInfo[] ops = mbi.getOperations();
  60         for (MBeanOperationInfo op : ops) {
  61             String name = op.getName();
  62             String rt = op.getReturnType();
  63             StringBuilder sb = new StringBuilder();
  64             sb.append(name + "(");
  65             for (MBeanParameterInfo param : op.getSignature()) {
  66                 sb.append(param.getType() + ",");
  67             }
  68             int comma = sb.lastIndexOf(",");
  69             if (comma == -1) {
  70                 sb.append(")");
  71             } else {
  72                 sb.replace(comma, comma + 1, ")");
  73             }
  74             System.out.println("\nNAME = " + sb.toString() + "\nRETURN TYPE = " + rt);
  75             for (String[] rts : returnTypes) {
  76                 if (sb.toString().equals(rts[0])) {
  77                     if (rt.equals(rts[1])) {
  78                         System.out.println("OK");
  79                         tested++;
  80                     } else {
  81                         System.out.println("KO: EXPECTED RETURN TYPE = " + rts[1]);
  82                         error++;
  83                     }
  84                 }
  85             }
  86         }
  87         if (error > 0) {
  88             System.out.println("\nTEST FAILED");
  89             throw new Exception("TEST FAILED: " + error + " wrong return types");
  90         } else if (tested != returnTypes.length &&
  91                    !System.getProperty("java.specification.version").equals("1.5")) {
  92             System.out.println("\nTEST FAILED");
  93             throw new Exception("TEST FAILED: " + tested + " cases tested, " +
  94             returnTypes.length + " expected");
  95         } else {
  96             System.out.println("\nTEST PASSED");
  97         }
  98     }
  99 }