Java example source code file (MapNullValuesTest.java)
The MapNullValuesTest.java Java example source code
/*
* Copyright (c) 2004, 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 4982668
* @summary Test that a map containing 'null' values is handled
* properly when converting the map into a hashtable,
* i.e. all 'null' values should be removed before creating
* the hashtable in order to avoid a NullPointerException.
* Check also that null values for keys are not allowed in
* the maps passed to the JMXConnector[Server] factories.
* @author Luis-Miguel Alventosa
* @run clean MapNullValuesTest
* @run build MapNullValuesTest
* @run main MapNullValuesTest
*/
import java.rmi.RemoteException;
import java.rmi.registry.Registry;
import java.rmi.registry.LocateRegistry;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXConnectorServer;
import javax.management.remote.JMXConnectorServerFactory;
import javax.management.remote.JMXServiceURL;
import com.sun.jmx.remote.util.EnvHelp;
public class MapNullValuesTest {
private static int port;
private Map map0;
private Map map1;
private Map map2;
private Map map3;
private Map maps[];
public MapNullValuesTest() {
// Map 0
//
map0 = new HashMap();
// Map 1
//
map1 = new HashMap();
map1.put("key1", "value1");
map1.put("key2", "value2");
map1.put("key3", "value3");
// Map 2
//
map2 = new HashMap();
map2.put("key1", "value1");
map2.put("key2", null);
map2.put("key3", "value3");
map2.put("key4", null);
map2.put("key5", "value5");
// Map 3
//
map3 = new HashMap();
map3.put("key1", "value1");
map3.put(null, "value2");
map3.put("key3", "value3");
// Map Array
//
maps = new Map[] { map0, map1, map2, map3 };
}
private void checkContents(Map m, Hashtable t)
throws IllegalArgumentException {
int size = m.size();
Set s = m.entrySet();
for (Iterator i = s.iterator(); i.hasNext(); ) {
Map.Entry e = (Map.Entry) i.next();
Object key = e.getKey();
Object value = e.getValue();
if (key == null || value == null) { // Null value
size--;
} else { // Check for equality
if (t.get(key) == null)
throw new IllegalArgumentException("Unknown key!");
else if (!t.get(key).equals(value))
throw new IllegalArgumentException("Value mismatch!");
}
}
if (t.size() != size)
throw new IllegalArgumentException("Size mismatch!");
}
private int mapToHashtableTests() {
int errorCount = 0;
echo("");
echo(dashedMessage("Run MapToHashtable Tests"));
for (int i = 0; i < maps.length; i++) {
echo("\n>>> MapToHashtable Test [" + i + "]");
try {
echo("\tMap = " + maps[i]);
Hashtable t = EnvHelp.mapToHashtable(maps[i]);
echo("\tHashtable = " + t);
checkContents(maps[i], t);
echo("\tTest [" + i + "] PASSED!");
} catch (Exception e) {
errorCount++;
echo("\tTest [" + i + "] FAILED!");
e.printStackTrace(System.out);
}
}
if (errorCount == 0) {
echo("");
echo(dashedMessage("MapToHashtable Tests PASSED!"));
} else {
echo("");
echo(dashedMessage("MapToHashtable Tests FAILED!"));
}
return errorCount;
}
private int jmxConnectorServerFactoryTests() {
int errorCount = 0;
echo("");
echo(dashedMessage("Run JMXConnectorServerFactory Tests"));
for (int i = 0; i < maps.length - 1; i++) {
echo("\n>>> JMXConnectorServerFactory Test [" + i + "]");
try {
echo("\tMap = " + maps[i]);
echo("\tCreate the MBean server");
MBeanServer mbs = MBeanServerFactory.createMBeanServer();
echo("\tCreate the RMI connector server");
JMXServiceURL url =
new JMXServiceURL("service:jmx:rmi:///jndi/rmi://:" +
port + "/JMXConnectorServerFactory" + i);
JMXConnectorServer jmxcs =
JMXConnectorServerFactory.newJMXConnectorServer(url,
maps[i],
mbs);
echo("\tStart the RMI connector server");
jmxcs.start();
echo("\tCall RMIConnectorServer.toJMXConnector(Map)");
jmxcs.toJMXConnector(maps[i]);
echo("\tStop the RMI connector server");
jmxcs.stop();
echo("\tTest [" + i + "] PASSED!");
} catch (Exception e) {
errorCount++;
echo("\tTest [" + i + "] FAILED!");
e.printStackTrace(System.out);
}
}
if (errorCount == 0) {
echo("");
echo(dashedMessage("JMXConnectorServerFactory Tests PASSED!"));
} else {
echo("");
echo(dashedMessage("JMXConnectorServerFactory Tests FAILED!"));
}
return errorCount;
}
private int jmxConnectorFactoryTests() {
int errorCount = 0;
echo("");
echo(dashedMessage("Run JMXConnectorFactory Tests"));
for (int i = 0; i < maps.length - 1; i++) {
echo("\n>>> JMXConnectorFactory Test [" + i + "]");
try {
echo("\tMap = " + maps[i]);
echo("\tCreate the MBean server");
MBeanServer mbs = MBeanServerFactory.createMBeanServer();
echo("\tCreate the RMI connector server");
JMXServiceURL url =
new JMXServiceURL("service:jmx:rmi:///jndi/rmi://:" +
port + "/JMXConnectorFactory" + i);
JMXConnectorServer jmxcs =
JMXConnectorServerFactory.newJMXConnectorServer(url,
null,
mbs);
echo("\tStart the RMI connector server");
jmxcs.start();
echo("\tCreate and connect the RMI connector");
JMXConnector jmxc =
JMXConnectorFactory.connect(jmxcs.getAddress(), maps[i]);
echo("\tClose the RMI connector");
jmxc.close();
echo("\tTest [" + i + "] PASSED!");
} catch (Exception e) {
errorCount++;
echo("\tTest [" + i + "] FAILED!");
e.printStackTrace(System.out);
}
}
if (errorCount == 0) {
echo("");
echo(dashedMessage("JMXConnectorFactory Tests PASSED!"));
} else {
echo("");
echo(dashedMessage("JMXConnectorFactory Tests FAILED!"));
}
return errorCount;
}
private int nullKeyFactoryTests() {
int errorCount = 0;
echo("");
echo(dashedMessage("Run Null Key Factory Tests"));
echo("\tMap = " + map3);
try {
String urlStr =
"service:jmx:rmi:///jndi/rmi://:" + port + "/NullKeyFactory";
MBeanServer mbs = MBeanServerFactory.createMBeanServer();
JMXServiceURL url = null;
JMXConnectorServer jmxcs = null;
JMXConnector jmxc = null;
echo("\tJMXConnectorServerFactory.newJMXConnectorServer()");
try {
url = new JMXServiceURL(urlStr + "1");
jmxcs = JMXConnectorServerFactory.newJMXConnectorServer(url,
map3,
mbs);
errorCount++;
echo("\tTest FAILED!");
} catch (Exception e) {
echo("\tException Message: " + e.getMessage());
echo("\tTest PASSED!");
}
echo("\tJMXConnectorServerFactory.toJMXConnector()");
try {
url = new JMXServiceURL(urlStr + "2");
jmxcs = JMXConnectorServerFactory.newJMXConnectorServer(url,
null,
mbs);
jmxcs.start();
jmxcs.toJMXConnector(map3);
errorCount++;
echo("\tTest FAILED!");
} catch (Exception e) {
echo("\tException Message: " + e.getMessage());
echo("\tTest PASSED!");
} finally {
jmxcs.stop();
}
echo("\tJMXConnectorFactory.newJMXConnector()");
try {
url = new JMXServiceURL(urlStr + "3");
jmxcs = JMXConnectorServerFactory.newJMXConnectorServer(url,
null,
mbs);
jmxcs.start();
jmxc = JMXConnectorFactory.newJMXConnector(jmxcs.getAddress(),
map3);
errorCount++;
echo("\tTest FAILED!");
} catch (Exception e) {
echo("\tException Message: " + e.getMessage());
echo("\tTest PASSED!");
} finally {
jmxcs.stop();
}
echo("\tJMXConnectorFactory.connect()");
try {
url = new JMXServiceURL(urlStr + "4");
jmxcs = JMXConnectorServerFactory.newJMXConnectorServer(url,
null,
mbs);
jmxcs.start();
jmxc = JMXConnectorFactory.connect(jmxcs.getAddress(), map3);
errorCount++;
echo("\tTest FAILED!");
} catch (Exception e) {
echo("\tException Message: " + e.getMessage());
echo("\tTest PASSED!");
} finally {
jmxcs.stop();
}
echo("\tJMXConnector.connect()");
try {
url = new JMXServiceURL(urlStr + "5");
jmxcs = JMXConnectorServerFactory.newJMXConnectorServer(url,
null,
mbs);
jmxcs.start();
jmxc = JMXConnectorFactory.newJMXConnector(jmxcs.getAddress(),
null);
jmxc.connect(map3);
errorCount++;
echo("\tTest FAILED!");
} catch (Exception e) {
echo("\tException Message: " + e.getMessage());
echo("\tTest PASSED!");
} finally {
jmxcs.stop();
}
} catch (Exception e) {
echo("\tGot unexpected exception!");
e.printStackTrace(System.out);
errorCount = 1;
}
if (errorCount == 0) {
echo("");
echo(dashedMessage("Null Key Factory Tests PASSED!"));
} else {
echo("");
echo(dashedMessage("Null Key Factory Tests FAILED!"));
}
return errorCount;
}
private static String dashedMessage(String message) {
final int MAX_LINE = 80;
StringBuffer sb = new StringBuffer(message);
sb.append(" ");
for (int i = MAX_LINE; i > message.length() + 1; i--)
sb.append("-");
return sb.toString();
}
private static void echo(String message) {
System.out.println(message);
}
public static void main(String[] args) throws Exception {
int errorCount = 0;
MapNullValuesTest test = new MapNullValuesTest();
// Create an RMI registry
//
echo("");
echo(dashedMessage("Start RMI registry"));
Registry reg = null;
port = 7500;
while (port++ < 7550) {
try {
reg = LocateRegistry.createRegistry(port);
echo("\nRMI registry running on port " + port);
break;
} catch (RemoteException e) {
// Failed to create RMI registry...
//
echo("\nFailed to create RMI registry on port " + port);
e.printStackTrace(System.out);
}
}
if (reg == null) {
System.exit(1);
}
// Run tests
//
errorCount += test.mapToHashtableTests();
errorCount += test.jmxConnectorServerFactoryTests();
errorCount += test.jmxConnectorFactoryTests();
errorCount += test.nullKeyFactoryTests();
if (errorCount == 0) {
echo("\nNull values for key/value pairs in Map Tests PASSED!");
} else {
echo("\nNull values for key/value pairs in Map Tests FAILED!");
System.exit(1);
}
}
}
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