Error on starting the application deployed in WAS7.0

I have deployed a war file in Websphere 7.0 console . Deployment was successful . On starting the application throws error as " Failed to Start "

Error logs are as below.

[9/19/11 12:50:36:679 EDT] 0000001f CompositionUn A   WSVR0190I: Starting composition unit WebSphere:cuname=EPROVIDER in BLA WebSphere:blaname=EPROVIDER.
[9/19/11 12:50:36:694 EDT] 0000001f ApplicationMg A   WSVR0200I: Starting application: EPROVIDER
[9/19/11 12:50:36:694 EDT] 0000001f ApplicationMg A   WSVR0204I: Application: EPROVIDER  Application build level: Unknown
[9/19/11 12:50:37:038 EDT] 0000001f ApplicationMg E   WSVR0101W: An error occurred starting, EPROVIDER
[9/19/11 12:50:37:038 EDT] 0000001f ApplicationMg A   WSVR0217I: Stopping application: EPROVIDER
[9/19/11 12:50:37:038 EDT] 0000001f ApplicationMg A   WSVR0220I: Application stopped: EPROVIDER
[9/19/11 12:50:37:038 EDT] 0000001f CompositionUn E   WSVR0194E: Composition unit WebSphere:cuname=EPROVIDER in BLA WebSphere:blaname=EPROVIDER failed to start.
[9/19/11 12:50:37:038 EDT] 0000001f MBeanHelper   E   Could not invoke an operation on object: WebSphere:name=ApplicationManager,process=server1,platform=proxy,node=L67695M1Node02,version=7.0.0.11,type=ApplicationManager,mbeanIdentifier=ApplicationManager,cell=L67695M1Node02Cell,spec=1.0 because of an mbean exception: com.ibm.ws.exception.RuntimeError: java.lang.RuntimeException: jav开发者_运维问答a.lang.NullPointerException

You need to give us more info pal.

If you provide us with the full console log, we could surely help.

You can find the log of the server here : C:*Your installed directory*\IBM\SDP75\runtimes\base_v7\profiles*YourProfile*\logs*yourServerName* and the file is startServer.log.

You can also try this :

1. Stop the server.
2. Manually delete temp and wstemp directories under your profile directory.
3. Clean publish.

Good luck