weblogic.application.moduleexception error in weblogic

While starting weblogic if you get below error then make sure your datasource settings are correct or not.

 
####<May 28, 2011 7:58:51 PM PDT> <Error> <Deployer> <XXXXXXX> <server-XXXXXXXXXX> <[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <> <1305935931389> <BEA-149205> <Failed to initialize the application '*AppName*' due to error weblogic.application.ModuleException: .

weblogic.application.ModuleException:

 at weblogic.jdbc.module.JDBCModule.prepare(JDBCModule.java:268)

at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:93)

at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:360)

at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)

at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:56)

at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:46)

at weblogic.application.internal.BaseDeployment$1.next(BaseDeployment.java:615)

at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:26)

at weblogic.application.internal.BaseDeployment.prepare(BaseDeployment.java:191)

at weblogic.application.internal.DeploymentStateChecker.prepare(DeploymentStateChecker.java:147)

at weblogic.deploy.internal.targetserver.AppContainerInvoker.prepare(AppContainerInvoker.java:61)

at weblogic.deploy.internal.targetserver.SystemResourceDeployment.prepare(SystemResourceDeployment.java:65)

at weblogic.management.deploy.internal.DeploymentAdapter$1.doPrepare(DeploymentAdapter.java:38)

at weblogic.management.deploy.internal.DeploymentAdapter.prepare(DeploymentAdapter.java:177)

at weblogic.management.deploy.internal.AppTransition$1.transitionApp(AppTransition.java:21)

at weblogic.management.deploy.internal.ConfiguredDeployments.transitionApps(ConfiguredDeployments.java:233)

at weblogic.management.deploy.internal.ConfiguredDeployments.prepare(ConfiguredDeployments.java:165)

at weblogic.management.deploy.internal.ConfiguredDeployments.deploy(ConfiguredDeployments.java:122)

at weblogic.management.deploy.internal.DeploymentServerService.resume(DeploymentServerService.java:173)

at weblogic.management.deploy.internal.DeploymentServerService.start(DeploymentServerService.java:89)

at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)

at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)

at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)

weblogic.common.ResourceException:

Could not connect to 'oracle.jdbc.xa.client.OracleXADataSource'.

The returned message is: ORA-01017: invalid username/password; logon denied

Usually when dbusername/password/DB name or db connection string is not correct, this issue happens. So check the jdbc-system-resource in config.xml file and edit the troubling/incorrect   jdbc/XXXXXXX-jdbc.xml file to get rid of the error.

The config in config.xml should look like below

 
<jdbc-system-resource>
<name>DataSourceName</name>
<target>Target Server/Cluster Name</target>
<descriptor-file-name>jdbc/XXXXXXX-jdbc.xml</descriptor-file-name>
</jdbc-system-resource>

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