1/*
2 * Copyright (c) 2004, 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     4990512
27 * @summary Basic Test for RuntimeMXBean.getSystemProperties().
28 * @author  Mandy Chung
29 */
30
31import java.lang.management.ManagementFactory;
32import java.lang.management.RuntimeMXBean;
33import java.util.*;
34
35public class GetSystemProperties {
36    private static final String KEY1   = "test.property.key1";
37    private static final String VALUE1 = "test.property.value1";
38    private static final String KEY2   = "test.property.key2";
39    private static final String VALUE2 = "test.property.value2";
40
41    // system properties to be omitted
42    private static final String KEY3   = "test.property.key3";
43    private static final Long VALUE3   = new Long(0);;
44
45    private static final Object KEY4   = new Object();
46    private static final String VALUE4 = "test.property.value4";
47
48    public static void main(String[] argv) throws Exception {
49        // Save a copy of the original system properties
50        Properties props = System.getProperties();
51
52        try {
53            // replace the system Properties object for any modification
54            // in case jtreg caches a copy
55            System.setProperties(new Properties(props));
56            runTest();
57        } finally {
58            // restore original system properties
59            System.setProperties(props);
60        }
61    }
62
63    private static void runTest() throws Exception {
64        RuntimeMXBean mbean = ManagementFactory.getRuntimeMXBean();
65
66        // Print all system properties
67        Map<String,String> props = mbean.getSystemProperties();
68        printProperties(props);
69
70        // Add new system properties
71        System.setProperty(KEY1, VALUE1);
72        System.setProperty(KEY2, VALUE2);
73
74        Map<String,String> props1 = mbean.getSystemProperties();
75        String value1 = props1.get(KEY1);
76        if (value1 == null || !value1.equals(VALUE1)) {
77            throw new RuntimeException(KEY1 + " property found" +
78                 " with value = " + value1 +
79                 " but expected to be " + VALUE1);
80        }
81
82        String value2 = props1.get(KEY2);
83        if (value2 == null || !value2.equals(VALUE2)) {
84            throw new RuntimeException(KEY2 + " property found" +
85                 " with value = " + value2 +
86                 " but expected to be " + VALUE2);
87        }
88
89        String value3 = props1.get(KEY3);
90        if (value3 != null) {
91            throw new RuntimeException(KEY3 + " property found" +
92                 " but should not exist" );
93        }
94
95        // Add new system properties but are not Strings
96        Properties sp = System.getProperties();
97        sp.put(KEY3, VALUE3);
98        sp.put(KEY4, VALUE4);
99
100        Map<String,String> props2 = mbean.getSystemProperties();
101        // expect the system properties returned should be
102        // same as the one before adding KEY3 and KEY4
103        if (!props1.equals(props2)) {
104            throw new RuntimeException("Two copies of system properties " +
105                "are expected to be equal");
106        }
107
108        System.out.println("Test passed.");
109    }
110
111    private static void printProperties(Map<String,String> props) {
112        Set<Map.Entry<String,String>> set = props.entrySet();
113        for (Map.Entry<String,String> p : set) {
114            System.out.println(p.getKey() + ": " + p.getValue());
115        }
116    }
117}
118