1 /*
   2  * Copyright (c) 2005, 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     6260131
  27  * @summary Test for RuntimeMXBean.getSystemProperties() if the system
  28  *          properties contain another list of properties as the defaults.
  29  * @author  Mandy Chung
  30  *
  31  * @run build PropertiesTest
  32  * @run main  PropertiesTest
  33  */
  34 
  35 import java.util.*;
  36 import java.io.*;
  37 import java.lang.management.ManagementFactory;
  38 import java.lang.management.RuntimeMXBean;
  39 
  40 public class PropertiesTest {
  41     private static int NUM_MYPROPS = 3;
  42     public static void main(String[] argv) throws Exception {
  43         // Save a copy of the original system properties
  44         Properties props = System.getProperties();
  45 
  46         try {
  47             // replace the system Properties object for any modification
  48             // in case jtreg caches a copy
  49             System.setProperties(new Properties(props));
  50             runTest(props.size());
  51         } finally {
  52             // restore original system properties
  53             System.setProperties(props);
  54         }
  55     }
  56 
  57     private static void runTest(int sysPropsCount) throws Exception {
  58         // Create a new system properties using the old one
  59         // as the defaults
  60         Properties myProps = new Properties( System.getProperties() );
  61 
  62         // add several new properties
  63         myProps.put("good.property.1", "good.value.1");
  64         myProps.put("good.property.2", "good.value.2");
  65         myProps.put("good.property.3", "good.value.3");
  66         myProps.put("good.property.4", new Integer(4));
  67         myProps.put(new Integer(5), "good.value.5");
  68         myProps.put(new Object(), new Object());
  69 
  70         System.setProperties(myProps);
  71 
  72         Map<String,String> props =
  73             ManagementFactory.getRuntimeMXBean().getSystemProperties();
  74         int i=0;
  75         for (Map.Entry<String,String> e : props.entrySet()) {
  76             String key = e.getKey();
  77             String value = e.getValue();
  78             System.out.println(i++ + ": " + key + " : " + value);
  79         }
  80 
  81         if (props.size() != NUM_MYPROPS + sysPropsCount) {
  82             throw new RuntimeException("Test Failed: " +
  83                 "Expected number of properties = " +
  84                 NUM_MYPROPS + sysPropsCount +
  85                 " but found = " + props.size());
  86         }
  87     }
  88 }