[jboss-jira] [JBoss JIRA] (REMJMX-105) Memory leak with http remoting jmx

[Andy G (JIRA)]

Andy G created REMJMX-105:
-----------------------------

             Summary: Memory leak with http remoting jmx
                 Key: REMJMX-105
                 URL: https://issues.jboss.org/browse/REMJMX-105
             Project: Remoting JMX
          Issue Type: Bug
          Components: Connection
    Affects Versions: 2.0.1.Final
            Reporter: Andy G
            Assignee: Darran Lofthouse


We see the memory leak with the RemoteConnectionChannel.java when we try to use the JBOSS mbean server connection in web application.

We initialize the JMX connection factory as below

  try {
            this.jmxConnector = JMXConnectorFactory.connect(serviceURL, auth);
            if (this.jmxConnector != null) {
             
                MBeanServerConnection mbs = this.jmxConnector.getMBeanServerConnection();
                if (mbs != null) {
                    this.mbs = mbs;
                }
            }
            
        } catch (IOException e) {
            connected = false;
            
            
        }

Then use mbean server connection after scheduled interval say 60 secs to read the mbeans from above mbean server connection.

  private Map<String, Object> getAttributesForMBean(ObjectName objectName, List<String> attributeNames) {
    	 
         HashMap<String, Object> attributeMap = new HashMap<String, Object>();
        for (String attributeName : attributeNames) {
            Object attributeValue = null;
            if (this.hasAttribute(objectName, attributeName)) {
                try {
                    attributeValue = this.mbs.getAttribute(objectName, attributeName);
                } catch (Exception e) {
                    logger.warn("In getAttributes(), for " + objectName + ": " , e);
                }
            }
            attributeMap.put(attributeName, attributeValue);
        }
        
        return attributeMap;
    }

We see that RemoteConnectionChannel keeps accumulating XnioWorkerTaskPool and leads to memory leak. 








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