1 /*
   2  * Copyright (c) 2003, 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 4947001 4954369 4954409 4954410
  27  * @summary Test that "Boolean isX()" and "int isX()" define operations
  28  * @author Eamonn McManus
  29  * @modules java.management
  30  * @run clean IsMethodTest
  31  * @run build IsMethodTest
  32  * @run main IsMethodTest
  33  */
  34 
  35 import javax.management.*;
  36 
  37 /*
  38    This regression test covers a slew of bugs in Standard MBean
  39    reflection.  Lots of corner cases were incorrect:
  40 
  41    In the MBeanInfo for a Standard MBean:
  42    - Boolean isX() defined an attribute as if it were boolean isX()
  43    - int isX() defined neither an attribute nor an operation
  44 
  45    When calling MBeanServer.getAttribute:
  46    - int get() and void getX() were considered attributes even though they
  47      were operations in MBeanInfo
  48 
  49    When calling MBeanServer.invoke:
  50    - Boolean isX() could not be called because it was (consistently with
  51      MBeanInfo) considered an attribute, not an operation
  52 */
  53 public class IsMethodTest {
  54     public static void main(String[] args) throws Exception {
  55         System.out.println("Test that Boolean isX() and int isX() both " +
  56                            "define operations not attributes");
  57 
  58         MBeanServer mbs = MBeanServerFactory.createMBeanServer();
  59         Object mb = new IsMethod();
  60         ObjectName on = new ObjectName("a:b=c");
  61         mbs.registerMBean(mb, on);
  62         MBeanInfo mbi = mbs.getMBeanInfo(on);
  63 
  64         boolean ok = true;
  65 
  66         MBeanAttributeInfo[] attrs = mbi.getAttributes();
  67         if (attrs.length == 0)
  68             System.out.println("OK: MBean defines 0 attributes");
  69         else {
  70             ok = false;
  71             System.out.println("TEST FAILS: MBean should define 0 attributes");
  72             for (int i = 0; i < attrs.length; i++) {
  73                 System.out.println("  " + attrs[i].getType() + " " +
  74                                    attrs[i].getName());
  75             }
  76         }
  77 
  78         MBeanOperationInfo[] ops = mbi.getOperations();
  79         if (ops.length == 4)
  80             System.out.println("OK: MBean defines 4 operations");
  81         else {
  82             ok = false;
  83             System.out.println("TEST FAILS: MBean should define 4 operations");
  84         }
  85         for (int i = 0; i < ops.length; i++) {
  86             System.out.println("  " + ops[i].getReturnType() + " " +
  87                                ops[i].getName());
  88         }
  89 
  90         final String[] bogusAttrNames = {"", "Lost", "Thingy", "Whatsit"};
  91         for (int i = 0; i < bogusAttrNames.length; i++) {
  92             final String bogusAttrName = bogusAttrNames[i];
  93             try {
  94                 mbs.getAttribute(on, bogusAttrName);
  95                 ok = false;
  96                 System.out.println("TEST FAILS: getAttribute(\"" +
  97                                    bogusAttrName + "\") should not work");
  98             } catch (AttributeNotFoundException e) {
  99                 System.out.println("OK: getAttribute(" + bogusAttrName +
 100                                    ") got exception as expected");
 101             }
 102         }
 103 
 104         final String[] opNames = {"get", "getLost", "isThingy", "isWhatsit"};
 105         for (int i = 0; i < opNames.length; i++) {
 106             final String opName = opNames[i];
 107             try {
 108                 mbs.invoke(on, opName, new Object[0], new String[0]);
 109                 System.out.println("OK: invoke(\"" + opName + "\") worked");
 110             } catch (Exception e) {
 111                 ok = false;
 112                 System.out.println("TEST FAILS: invoke(" + opName +
 113                                    ") got exception: " + e);
 114             }
 115         }
 116 
 117         if (ok)
 118             System.out.println("Test passed");
 119         else {
 120             System.out.println("TEST FAILED");
 121             System.exit(1);
 122         }
 123     }
 124 
 125     public static interface IsMethodMBean {
 126         public int get();
 127         public void getLost();
 128         public Boolean isThingy();
 129         public int isWhatsit();
 130     }
 131 
 132     public static class IsMethod implements IsMethodMBean {
 133         public int get() {
 134             return 0;
 135         }
 136 
 137         public void getLost() {
 138         }
 139 
 140         public Boolean isThingy() {
 141             return Boolean.TRUE;
 142         }
 143 
 144         public int isWhatsit() {
 145             return 0;
 146         }
 147     }
 148 }