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/*
* Copyright (c) 2004, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4990512
* @summary Basic Test for RuntimeMXBean.getSystemProperties().
* @author Mandy Chung
*/
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import java.util.*;
public class GetSystemProperties {
private static final String KEY1 = "test.property.key1";
private static final String VALUE1 = "test.property.value1";
private static final String KEY2 = "test.property.key2";
private static final String VALUE2 = "test.property.value2";
// system properties to be omitted
private static final String KEY3 = "test.property.key3";
private static final Long VALUE3 = new Long(0);;
private static final Object KEY4 = new Object();
private static final String VALUE4 = "test.property.value4";
public static void main(String[] argv) throws Exception {
// Save a copy of the original system properties
Properties props = System.getProperties();
try {
// replace the system Properties object for any modification
// in case jtreg caches a copy
System.setProperties(new Properties(props));
runTest();
} finally {
// restore original system properties
System.setProperties(props);
}
}
private static void runTest() throws Exception {
RuntimeMXBean mbean = ManagementFactory.getRuntimeMXBean();
// Print all system properties
Map<String,String> props = mbean.getSystemProperties();
printProperties(props);
// Add new system properties
System.setProperty(KEY1, VALUE1);
System.setProperty(KEY2, VALUE2);
Map<String,String> props1 = mbean.getSystemProperties();
String value1 = props1.get(KEY1);
if (value1 == null || !value1.equals(VALUE1)) {
throw new RuntimeException(KEY1 + " property found" +
" with value = " + value1 +
" but expected to be " + VALUE1);
}
String value2 = props1.get(KEY2);
if (value2 == null || !value2.equals(VALUE2)) {
throw new RuntimeException(KEY2 + " property found" +
" with value = " + value2 +
" but expected to be " + VALUE2);
}
String value3 = props1.get(KEY3);
if (value3 != null) {
throw new RuntimeException(KEY3 + " property found" +
" but should not exist" );
}
// Add new system properties but are not Strings
Properties sp = System.getProperties();
sp.put(KEY3, VALUE3);
sp.put(KEY4, VALUE4);
Map<String,String> props2 = mbean.getSystemProperties();
// expect the system properties returned should be
// same as the one before adding KEY3 and KEY4
if (!props1.equals(props2)) {
throw new RuntimeException("Two copies of system properties " +
"are expected to be equal");
}
System.out.println("Test passed.");
}
private static void printProperties(Map<String,String> props) {
Set<Map.Entry<String,String>> set = props.entrySet();
for (Map.Entry<String,String> p : set) {
System.out.println(p.getKey() + ": " + p.getValue());
}
}
}
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