[JBoss JIRA] (AS7-5408) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
7:02 p.m.
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}
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7:04 p.m.
[
https://issues.jboss.org/browse/AS7-5408?page=com.atlassian.jira.plugin.s...
]
Taras Tielkes updated AS7-5408:
-------------------------------
Description:
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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
was:
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}
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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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7:14 p.m.
[
https://issues.jboss.org/browse/AS7-5408?page=com.atlassian.jira.plugin.s...
]
Taras Tielkes updated AS7-5408:
-------------------------------
Attachment: jboss-client-xnio-hanging-stackdump.txt
Attaching example stackdump.
You'll see two xnio worker threads ("Remoting "endpoint" write-1"
and "Remoting "endpoint" read-1") still running.
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
Attachments: jboss-client-xnio-hanging-stackdump.txt
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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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7:23 p.m.
[
https://issues.jboss.org/browse/AS7-5408?page=com.atlassian.jira.plugin.s...
]
Taras Tielkes updated AS7-5408:
-------------------------------
Attachment: jboss-client-xnio-hanging-stackdump-linux.txt
Adding a stackdump for a similar situation on Linux x64 (also using Java7).
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
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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7:23 p.m.
[
https://issues.jboss.org/browse/AS7-5408?page=com.atlassian.jira.plugin.s...
]
Taras Tielkes updated AS7-5408:
-------------------------------
Environment:
Windows XP x64, using Java 7
Linux x64, using Java 7
was:Windows XP x64, using Java 7
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
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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7:25 p.m.
[
https://issues.jboss.org/browse/AS7-5408?page=com.atlassian.jira.plugin.s...
]
Taras Tielkes updated AS7-5408:
-------------------------------
Description:
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
was:
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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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7:35 p.m.
[
https://issues.jboss.org/browse/AS7-5408?page=com.atlassian.jira.plugin.s...
]
Taras Tielkes commented on AS7-5408:
------------------------------------
Perhaps this should be a REMJMX issue - is there a way to move it to that JIRA project?
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
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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7:45 p.m.
[
https://issues.jboss.org/browse/AS7-5408?page=com.atlassian.jira.plugin.s...
]
Taras Tielkes commented on AS7-5408:
------------------------------------
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
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
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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7:53 p.m.
[
https://issues.jboss.org/browse/AS7-5408?page=com.atlassian.jira.plugin.s...
]
Taras Tielkes updated AS7-5408:
-------------------------------
Description:
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
was:
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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7:53 p.m.
[
https://issues.jboss.org/browse/AS7-5408?page=com.atlassian.jira.plugin.s...
]
Taras Tielkes updated AS7-5408:
-------------------------------
Description:
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
was:
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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7:53 p.m.
[
https://issues.jboss.org/browse/AS7-5408?page=com.atlassian.jira.plugin.s...
]
Taras Tielkes updated AS7-5408:
-------------------------------
Description:
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
was:
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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9:46 p.m.
New subject: [JBoss JIRA] (REMJMX-52) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
[
https://issues.jboss.org/browse/REMJMX-52?page=com.atlassian.jira.plugin....
]
Brian Stansberry moved AS7-5408 to REMJMX-52:
---------------------------------------------
Project: Remoting JMX (was: Application Server 7)
Key: REMJMX-52 (was: AS7-5408)
Workflow: jira (was: GIT Pull Request workflow )
Affects Version/s: (was: 7.1.1.Final)
Component/s: (was: JMX)
Background org.xnio.nio.WorkerThread prevents JVM shutdown (using
jboss-client.jar for remote JMX access)
---------------------------------------------------------------------------------------------------------
Key: REMJMX-52
URL: https://issues.jboss.org/browse/REMJMX-52
Project: Remoting JMX
Issue Type: Bug
Environment: Windows XP x64, using Java 7
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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9:46 p.m.
New subject: [JBoss JIRA] (REMJMX-52) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
[
https://issues.jboss.org/browse/REMJMX-52?page=com.atlassian.jira.plugin....
]
Brian Stansberry commented on REMJMX-52:
----------------------------------------
Moved to the REMJMX project.
Background org.xnio.nio.WorkerThread prevents JVM shutdown (using
jboss-client.jar for remote JMX access)
---------------------------------------------------------------------------------------------------------
Key: REMJMX-52
URL: https://issues.jboss.org/browse/REMJMX-52
Project: Remoting JMX
Issue Type: Bug
Environment: Windows XP x64, using Java 7
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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12:30 a.m.
New subject: [JBoss JIRA] (REMJMX-52) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
[
https://issues.jboss.org/browse/REMJMX-52?page=com.atlassian.jira.plugin....
]
Stuart Douglas resolved REMJMX-52.
----------------------------------
Fix Version/s: 1.0.5.CR1
Resolution: Done
Background org.xnio.nio.WorkerThread prevents JVM shutdown (using
jboss-client.jar for remote JMX access)
---------------------------------------------------------------------------------------------------------
Key: REMJMX-52
URL: https://issues.jboss.org/browse/REMJMX-52
Project: Remoting JMX
Issue Type: Bug
Environment: Windows XP x64, using Java 7
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Fix For: 1.0.5.CR1
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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11:40 a.m.
New subject: [JBoss JIRA] (REMJMX-52) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
[
https://issues.jboss.org/browse/REMJMX-52?page=com.atlassian.jira.plugin....
]
Taras Tielkes commented on REMJMX-52:
-------------------------------------
Hi Stuart, I just noticed issue REMJMX-34, which sounds quite similar.
However, that one has been marked as fixed for 1.0.2 (which I assume related to the
org.jboss.remotingjmx:remoting-jmx artifact). However, the jboss-client.jar in JBoss
7.1.1.Final already comes with that version packaged in.
However, at the end of yesterday I fetched a nightly build from
[https://community.jboss.org/thread/167590], and took the jboss-client.jar from that one
(which seems to contain org.jboss.remotingjmx:remoting-jmx version 1.0.4.Final). This
seemed to resolve the issue I was observing.
So now I'm a bit confused. _Is_ this a different issue than REMJMX-34? If so,
what's the actual problem and fix?
Also, is there a way to obtain a nightly build of 1.0.5.CR1?
Background org.xnio.nio.WorkerThread prevents JVM shutdown (using
jboss-client.jar for remote JMX access)
---------------------------------------------------------------------------------------------------------
Key: REMJMX-52
URL: https://issues.jboss.org/browse/REMJMX-52
Project: Remoting JMX
Issue Type: Bug
Environment: Windows XP x64, using Java 7
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Fix For: 1.0.5.CR1
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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2:02 p.m.
New subject: [JBoss JIRA] (REMJMX-52) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
[
https://issues.jboss.org/browse/REMJMX-52?page=com.atlassian.jira.plugin....
]
Brian Stansberry commented on REMJMX-52:
----------------------------------------
The remoting-jmx project doesn't publish nightly builds. It's easy to do a build
in about a minute though:
$ git clone git://github.com/jbossas/remoting-jmx.git
$ cd remoting-jmx
$ mvn install
Background org.xnio.nio.WorkerThread prevents JVM shutdown (using
jboss-client.jar for remote JMX access)
---------------------------------------------------------------------------------------------------------
Key: REMJMX-52
URL: https://issues.jboss.org/browse/REMJMX-52
Project: Remoting JMX
Issue Type: Bug
Environment: Windows XP x64, using Java 7
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Fix For: 1.0.5.CR1
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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3:50 p.m.
New subject: [JBoss JIRA] (REMJMX-52) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
[
https://issues.jboss.org/browse/REMJMX-52?page=com.atlassian.jira.plugin....
]
Taras Tielkes commented on REMJMX-52:
-------------------------------------
Hi Brian,
Thanks, that worked (after adding in the correct {{<pluginRepository>}} and
{{<repository>}} elements in the pom.xml).
I also took a look at the actual code fix.
Do you perhaps know how I can recreate the {{jboss-client.jar}} that is provided in the
{{bin/client}} directory of JBoss 7?
Background org.xnio.nio.WorkerThread prevents JVM shutdown (using
jboss-client.jar for remote JMX access)
---------------------------------------------------------------------------------------------------------
Key: REMJMX-52
URL: https://issues.jboss.org/browse/REMJMX-52
Project: Remoting JMX
Issue Type: Bug
Environment: Windows XP x64, using Java 7
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Fix For: 1.0.5.CR1
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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4:02 p.m.
New subject: [JBoss JIRA] (REMJMX-52) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
[
https://issues.jboss.org/browse/REMJMX-52?page=com.atlassian.jira.plugin....
]
Brian Stansberry commented on REMJMX-52:
----------------------------------------
It's built in the client/shade module of the AS source tree. So you'd need to
build the remoting-jmx snapshot, clone the AS github repo (if you don't have a clone),
checkout the last 7.1 branch, change the AS's root pom.xml to use the snapshot (change
<version.org.jboss.remotingjmx.remoting-jmx>1.0.4.Final</version.org.jboss.remotingjmx.remoting-jmx>),
and then build the AS.
Background org.xnio.nio.WorkerThread prevents JVM shutdown (using
jboss-client.jar for remote JMX access)
---------------------------------------------------------------------------------------------------------
Key: REMJMX-52
URL: https://issues.jboss.org/browse/REMJMX-52
Project: Remoting JMX
Issue Type: Bug
Environment: Windows XP x64, using Java 7
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Fix For: 1.0.5.CR1
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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6:14 p.m.
New subject: [JBoss JIRA] (REMJMX-52) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
[
https://issues.jboss.org/browse/REMJMX-52?page=com.atlassian.jira.plugin....
]
Taras Tielkes commented on REMJMX-52:
-------------------------------------
Brian, thank you for your clear instructions, everything works like a charm.
Background org.xnio.nio.WorkerThread prevents JVM shutdown (using
jboss-client.jar for remote JMX access)
---------------------------------------------------------------------------------------------------------
Key: REMJMX-52
URL: https://issues.jboss.org/browse/REMJMX-52
Project: Remoting JMX
Issue Type: Bug
Environment: Windows XP x64, using Java 7
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Fix For: 1.0.5.CR1
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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1:16 p.m.
New subject: [JBoss JIRA] (REMJMX-52) Background org.xnio.nio.WorkerThread prevents JVM shutdown (using jboss-client.jar for remote JMX access)
[
https://issues.jboss.org/browse/REMJMX-52?page=com.atlassian.jira.plugin....
]
Darran Lofthouse updated REMJMX-52:
-----------------------------------
Fix Version/s: 1.1.0.Beta1
Background org.xnio.nio.WorkerThread prevents JVM shutdown (using
jboss-client.jar for remote JMX access)
---------------------------------------------------------------------------------------------------------
Key: REMJMX-52
URL: https://issues.jboss.org/browse/REMJMX-52
Project: Remoting JMX
Issue Type: Bug
Environment: Windows XP x64, using Java 7
Linux x64, using Java 7
Reporter: Taras Tielkes
Assignee: Stuart Douglas
Fix For: 1.0.5.CR1, 1.1.0.Beta1
Attachments: jboss-client-xnio-hanging-stackdump-linux.txt,
jboss-client-xnio-hanging-stackdump.txt
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've attached stackdumps from both Windows and Linux x64 demonstrating the problem.
Here's a link to a report from Red Hat engineer Rob Stryker on the
"jboss-as7-dev" mailing list, essentially confirming the problems I report with
such a trivial, minimal JMX client.
[http://lists.jboss.org/pipermail/jboss-as7-dev/2012-March/005679.html]
----------------------------------------------
{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) throws IOException {
JMXConnector jmxConnector = null;
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 = JMXConnectorFactory.connect(serviceURL, env);
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
System.out.println("Successfully Got Connection " +
connection.getMBeanCount());
jmxConnector.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (jmxConnector != null) {
jmxConnector.close();
}
}
System.exit(0);
}
}{code}
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4306
days inactive
4323
days old
19 comments
4 participants
participants (4)
-
Brian Stansberry (JIRA) -
Darran Lofthouse (JIRA)
-
Stuart Douglas (JIRA)
-
Taras Tielkes (JIRA)