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djechlin
java jmx
It seems that the fact that my class is an inner class is causing the issue, that’s my hunch – but basically it’s otherwise the usual pattern:public class UserProvisionerProfiler implements UserProvisionerProfilerMBean {@Overridepublic int getTotalNumberOfUsers() {return activeClients.size();} }And the interface (nested in a larger class):public interface UserProvisionerProfilerMBean {public int getTotalNumberOfUsers();}Registered in the code:UserProvisionerProfiler userProvisionerProfiler = new
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Björn Pollex
java adobe osgi jmx cq5
I’m trying to get the HeapMemoryUsage of the publish server from the author instance. I attached the code of the servlet which gets called below.In the exception you can see that we get a NullPointerException at Line 88 which is JMXConnectorFactory.connect(serviceUrl).From Jconsole or by running it from a test class (local with main method) it functions without any problems.The Exception:29.11.2012 15:01:17.407 *ERROR* [127.0.0.1 [1354197677403] GET /bin/cqdashboard HTTP/1.1] org.apache.sli
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BobG
java spring tomcat jmx
I’ve been trying to get a sample JMX MXBean working in a Spring-configured webapp, but any basic attributes on the MXBean are coming up as UNDEFINED when I connect with jconsole.Java interface/classes:public interface IJmxBean { // marker interface for spring config, see below }public interface MgmtMXBean { // lexical convention for MXBeans – mgmt interfacepublic int getAttribute(); }public class Mgmt implements IJmxBean, MgmtMXBean { // actual JMX beanprivate IServiceBean serviceBean; // ser
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GregB
tomcat java jmx
I just completed a migration from Windows server 2008 R2 to Ubuntu 10.04. I manage a java application (Java 6, Tomcat) that is having some performance issues. I’d like to use JMX to try and troubleshoot, but I can’t seem to get jvisualvm to connect.If I do a ps -ef | grep “java”, I see the following parameters.-Dcom.sun.management.jmxremote.port=8084 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=falseNetstat shows that port 8084 is listening on 0.0.0.0.
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Dave
jmx
I am trying to connect to a remote java app using jconsole as a JMX client over sshI have built the CustomAgent described on https://blogs.oracle.com/jmxetc/entry/connecting_through_firewall_using_jmxThe code for the agent is here/** * CustomAgent.java* https://blogs.oracle.com/jmxetc/entry/connecting_through_firewall_using_jmx */package example.rmi.agent;import java.io.IOException; import java.lang.management.ManagementFactory; import java.net.InetAddress; import java.rmi.registry.Lo
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Richards
java jmx spring-3
So when I try to connect to jmx from jconsole I get this exception:Caused by: java.rmi.ConnectException: Connection refused to host: 78.84.17.116; nested exception is: java.net.ConnectException: Connection timed out: connectat sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:601)at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:198)…I was trying to connect to such url in jconsole: service:jmx:rmi:///jndi/rmi://78.84.17.116:43030/testMy jmx spring configuration:&l
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Charles
java profiling nullpointerexception jmx visualvm
Problem:When I connect via VisualVM and supply the correct credentials, the program seems to wait a bit (either processing or waiting for the connection), then errors out with this an exception. The connection does not seem to get added correctly after this exception is throw:java.lang.NullPointerException: Illegal null argumentat javax.management.remote.JMXConnectionNotification.<init>(JMXConnectionNotification.java:152)at javax.management.remote.rmi.RMIConnector$RMIClientCommunicatorAdm
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huican
java jmx
Can anyone help me to figure out the problem?my com.intel.esg.ecp.cli.Command connected to JMX, and find the MXBean com.acme.AcmeManager, it supposes to call createObject to create AcmeObject.Both AcmeManager and AcmeObject are designed to be MXBean, and I published the without issue.Does the stack mean the AcmeObject doesn’t confirm the MXBean standard or AcmeManager doesn’t confirm the MXBean standard? I am new to JMX MXBean, and can someone points me some useful materials?ThanksExecuting ‘cre
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user2052286
java rmi jmx
We have several server side components in our architecture. Each component uses JMX to expose various internal attributes. Initialization is done as follows:try { Registry registry = null;for(int i = _serverInfo.getJMXStartPort(); i <= _serverInfo.getJMXEndPort(); i++) { try {registry = LocateRegistry.createRegistry(i);if(registry != null) {_statusPort = i;logger.info(“Using JMX port: “+_statusPort);break;}} catch (Exception e) {_statusPort++;}} MBe
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sleske
spring exception jmx jvisualvm
Our application exposes some methods via JMX, which we invoke using JVisualVM.This works well normally, but sometimes a method call will abort with an exception inside the application. In that case, instead of showing the error message from the exception, JVisualVM shows an error message java.rmi.UnmarshalException […] error unmarshaling return; nested exception is: java.lang.ClassNotFoundException […]This is rather unhelpful and confusing; we would like JVisualVM to show the real error mes
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Daniel
java exception-handling jmx
I have exposed methods for remote management in my application server using JMX by creating an MXBean interface, and a class to implement it. Included in this interface are operations for setting attributes on my server, and for getting the current value of attributes. For example, take the following methods:public interface WordManagerMXBean {public void addWord(String word);public WordsObject getWords();public void removeWord(String word); }The WordsObject is a custom, serializable class used
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cyber-monk
activemq jmx
Configuration: Redhat 5.3, Sun Java 1.6.31, ActiveMQ 5.4.2I’m getting an exception every time I stop activemq ($> service activemq stop)ACTIVEMQ_HOME: /opt/apache/apache-activemq-5.4.2 ACTIVEMQ_BASE: /opt/apache/apache-activemq-5.4.2 Connecting to JMX URL: service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi ERROR: java.lang.RuntimeException: Failed to execute stop task. Reason: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is jav
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Dan Forbes
connection datasource jmx invoke mbeans
I’m sure I’m going about this in completely the wrong way, but can someone point out the error in the code below…MBeanServer server = (MBeanServer) MBeanServerFactory.findMBeanServer (null).get (0); ObjectName mBean = new ObjectName (“Catalina:type=DataSource,path=/<context>,host=localhost,class=javax.sql.DataSource,name=\”<name>\””); String [] params = {“<username>”, “<password>”}; Connection myConnection = (Connection) server.invoke (mBean, “getConnection”, params, nu