[jboss-user] [Management, JMX/JBoss] - " No ClassLoaders found " error when deploying a startup cla

I am trying to deploy a simple start up class at JBoss startup time and it keeps giving the following error: [java] Caused by: java.lang.ClassNotFoundException: No ClassLoaders found for: com.acme.common.business.taskmanagement.TaskTimerStartup | [java] at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:306 | ) | [java] at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(Repo | sitoryClassLoader.java:514) | [java] at org.jboss.mx.loading.RepositoryClassLoader.loadClass(Reposito | ryClassLoader.java:408) | [java] at java.lang.ClassLoader.loadClass(ClassLoader.java:251) | [java] at org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerIm | pl.java:1204) | [java] at org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerIm | pl.java:286) | [java] at org.jboss.mx.server.MBeanServerImpl.createMBean(MBeanServerIm | pl.java:344) | [java] at org.jboss.system.ServiceCreator.install(ServiceCreator.java:1 | 57) | [java] at org.jboss.system.ServiceConfigurator.internalInstall(ServiceC | onfigurator.java:449) | [java] at org.jboss.system.ServiceConfigurator.install(ServiceConfigura | tor.java:171) The TaskTimerStartup class extends ServiceMBeanSupport and implements TaskTimerMBean interface. I have put both these classes and jboss-service.xml in a sar file and deployed it with my ear file. I also added the following entry to application.xml <module><java>timer.sar</java></module> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4048055#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...