[jboss-user] [Installation, Configuration & Deployment] - Mbeans Releated Problem..new to jboss.. plz help

[samfromindia]

Hi, 
   I am new to jboss.please help me for the following problem.
In my application i have a .ini file where we have some configuration values which must be set at the time of deployment of the build.
What i am trying to do is creating a MBEAN through which we can change the values through jmx console. and my application will read all the values from this mbean.
i have created one interface and one class which implements the interface.
when i try to compile the build it says build suceesful and i also can see the sar file in the server>default>deploy folder.
but imedidately after i am getting this exception.


13:05:11,758 ERROR [MainDeployer] could not create deployment: file:/C:/jboss-4.0.1/server/default/deploy/blog_example.sar
org.jboss.deployment.DeploymentException: No ClassLoaders found for: blog.example.services.BlogExampleService; - nested throwable: (java.lang.ClassNotFoundException: No ClassLoaders found for: blog.example.services.BlogExampleService)
	at org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:143)
	at org.jboss.system.ServiceController.install(ServiceController.java:200)
	at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:324)
	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:144)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)
	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)
	at $Proxy4.install(Unknown Source)
	at org.jboss.deployment.SARDeployer.create(SARDeployer.java:208)
	at org.jboss.deployment.MainDeployer.create(MainDeployer.java:918)
	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:774)
	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738)
	at sun.reflect.GeneratedMethodAccessor47.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:324)
	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:144)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
	at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:122)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
	at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:131)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)
	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)
	at $Proxy8.deploy(Unknown Source)
	at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:305)
	at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:481)
	at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:204)
	at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:215)
	at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:194)
Caused by: java.lang.ClassNotFoundException: No ClassLoaders found for: blog.example.services.BlogExampleService
	at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:198)
	at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:464)
	at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:374)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
	at org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:1183)
	at org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:269)
	at org.jboss.mx.server.MBeanServerImpl.createMBean(MBeanServerImpl.java:327)
	at org.jboss.system.ServiceCreator.install(ServiceCreator.java:125)
	at org.jboss.system.ServiceConfigurator.internalInstall(ServiceConfigurator.java:153)
	at org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:118)
	... 33 more

plzzzzz help me what to do now.
Thanks in advance!!

sam

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