[jboss-jira] [JBoss JIRA] (AS7-5408) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)

[Taras Tielkes (JIRA)]

Taras Tielkes created AS7-5408:
----------------------------------

             Summary: Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
                 Key: AS7-5408
                 URL: https://issues.jboss.org/browse/AS7-5408
             Project: Application Server 7
          Issue Type: Bug
          Components: JMX
    Affects Versions: 7.1.1.Final
         Environment: Windows XP x64, using Java 7
            Reporter: Taras Tielkes
            Assignee: Stuart Douglas


I'm using the "jboss-client.jar" provided in the "bin/client" directory of the 7.1.1.Final distribution.

I'm using the code shown below to connect to various JBoss 7.1.1 instances.
This works when the machines are reachable.

However, when they are not, the underlying "xnio" libraries do not clean up properly. 

Observed results: client JVM running my JMX code does not exit, since the background threads from xnio are non-deamon.

I'll attach a stackdump of the handing JVM as well.

{code}import java.io.IOException;
import java.net.MalformedURLException;
import java.util.HashMap;

import javax.management.MBeanServerConnection;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

public class Demo {
	public static void main(String[] args) {
		String host = "some.unreachable.host";
		String port = "9999";
		String urlString = "service:jmx:remoting-jmx://" + host + ":" + port;
		try {
			JMXServiceURL serviceURL = new JMXServiceURL(urlString);
			HashMap<String, String[]> env = new HashMap<String, String[]>();
			String[] creds = new String[2];
			creds[0] = "username";
			creds[1] = "password";
			env.put(JMXConnector.CREDENTIALS, creds);
			JMXConnector jmxConnector = JMXConnectorFactory.connect(serviceURL, env);
			MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
			System.out.println("Successfully Got Connection  " + connection.getMBeanCount());
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

		System.exit(0);
	}
}
{code}


--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.jboss.org/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira