Hi,
I think I found a (very) small bug in the MulticastDetector implementation.
If you don't call start and then stop or if you call stop twice, you will get a
NullPointerException (see JUnit test below). This is no major issue (after all
you can just call the methods correctly), but I think frameworks shouldn't
produce NullPointerExceptions when used incorrectly.
public class MulticastDetectorTest extends TestCase {
|
| private MBeanServer server;
|
| private ObjectName objectName;
|
| protected void setUp() throws Exception {
| super.setUp();
| server = ManagementFactory.getPlatformMBeanServer();
| objectName = new ObjectName("remoting:type=MulticastDetector");
| }
|
| protected void tearDown() throws Exception {
| super.tearDown();
| }
|
| public void testStopWithoutStart() throws Exception {
| MulticastDetector detector = new MulticastDetector();
| server.registerMBean(detector, objectName);
| // don't call detector.start();
| Thread.sleep(1000);
|
| server.unregisterMBean(objectName);
| detector.stop();
| }
|
| public void testCallingStopTwice() throws Exception {
| MulticastDetector detector = new MulticastDetector();
| server.registerMBean(detector, objectName);
| detector.start();
| Thread.sleep(1000);
|
| server.unregisterMBean(objectName);
| detector.stop();
| detector.stop();
| }
| }
|
Chris
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