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From "Forrest Xia (Closed) (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (GERONIMO-5355) ClassCastException while starting snapshot (Stat Query) in G 215 Monitoring portlet through java client
Date Fri, 16 Dec 2011 12:44:30 GMT

     [ https://issues.apache.org/jira/browse/GERONIMO-5355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Forrest Xia closed GERONIMO-5355.
---------------------------------

    Resolution: Fixed

Close it since the fix is in the 2.1 branch.
                
> ClassCastException while starting snapshot (Stat Query) in G 215 Monitoring portlet through
java client
> -------------------------------------------------------------------------------------------------------
>
>                 Key: GERONIMO-5355
>                 URL: https://issues.apache.org/jira/browse/GERONIMO-5355
>             Project: Geronimo
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: monitoring
>    Affects Versions: 2.1.5, 2.2.1
>            Reporter: Amit Puri
>            Assignee: Vamsavardhana Reddy
>             Fix For: 2.1.8, 2.2.2
>
>
> In a java client where MBeanServerConnection is created and invoke startSnapshot method
in Monitoring Portlet of G 215, Stat Query snapshot started but we can also find ClassCastException.
> ...
> ERROR [MasterRemoteControlJMX] org.tranql.connector.jdbc.TranqlDataSource$SelfReference
incompatible with javax.sql.DataSource
> java.lang.ClassCastException: org.tranql.connector.jdbc.TranqlDataSource$SelfReference
incompatible with javax.sql.DataSource
>         at org.apache.geronimo.monitoring.MasterRemoteControlJMX.<init>(MasterRemoteControlJMX.java:110)
>         at org.apache.geronimo.monitoring.snapshot.SnapshotProcessor.getMRC(SnapshotProcessor.java:148)
>         at org.apache.geronimo.monitoring.snapshot.SnapshotProcessor.takeSnapshot(SnapshotProcessor.java:59)
>         at org.apache.geronimo.monitoring.snapshot.SnapshotThread.run(SnapshotThread.java:103)
> ...
> In G 214, this exception does not come while using same java client. 
> These steps are followed in java client:
> 1.Creating MBeanServerConnection object
> ...
> MBeanServerConnection mbServerConn;   
> JMXServiceURL serviceURL = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost/JMXConnector");
> Hashtable<String, Object> env = new Hashtable<String, Object>();
> String[] credentials = new String[2];
> credentials[0] = "system";
> credentials[1] = "manager";
> env.put(JMXConnector.CREDENTIALS, credentials);     
>            
> JMXConnector connector = JMXConnectorFactory.connect(serviceURL, env);
> mbServerConn = connector.getMBeanServerConnection();
> ..
> 2. Retrieving the mbean name to the agent-car-jmx plugin
> ..
> if(PATH == null) {
> Set<ObjectName> mbeanNames = mbServerConn.queryNames(new ObjectName("*:name=MasterRemoteControlJMX,*"),
null);
> for(Iterator<ObjectName> it = mbeanNames.iterator(); it.hasNext(); ) {
> String mbeanName = ((ObjectName)it.next()).getCanonicalName();
> if(mbeanName.contains("agent-car-jmx") && mbeanName.contains("MasterRemoteControlJMX")
&& mbeanName.contains("GBean")) {
> PATH = mbeanName;
> break;
> }}
> if(PATH == null) {
> throw new Exception("[ERROR] Required mbean not found: agent-car-jmx");
> }}
> ..
> Here I am getting mbean name as "geronimo:J2EEServer=geronimo,ServiceModule=org.apache.geronimo.plugins.monitoring/agent-car-jmx/2.1.5/car,j2eeType=GBean,name=MasterRemoteControlJMX"
> 3. Invoking startSnapshot
> ..
> long time = 300000;
> int days = 2;
> mbServerConn.invoke(new ObjectName(PATH),"startSnapshot", new Object[] { time, days },
new String[] { "java.lang.Long", "java.lang.Integer" });
> ..

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