[jboss-user] Error Configuring persistent unit in jpa throwing strange class cast exception

Hi All I am trying to configure a jta data source to persitent unit for JPA. It is throwing a strange class cast exception,I am able to bind the data source successfully the problems comes into picture when using the jndi to bind to persitent unit. Ds file <?xml version="1.0" encoding="UTF-8"?> <datasources> <local-tx-datasource> <use-java-context>false</use-java-context> <jndi-name>jdbc/questionaire</jndi-name> <connection-url>jdbc:jtds:sqlserver://calcas\sqlexpress:1443/questionaire</c onnection-url> <driver-class>net.sourceforge.jtds.jdbc.Driver</driver-class> <user-name>sa</user-name> <password>Passw0rd</password> <min-pool-size>10</min-pool-size> <max-pool-size>20</max-pool-size> <prepared-statement-cache-size>32</prepared-statement-cache-size> <idle-timeout-minutes>300</idle-timeout-minutes> </local-tx-datasource> </datasources> java.lang.ClassCastException: $Proxy263 cannot be cast to javax.sql.DataSource at org.jboss.jpa.deployment.PersistenceUnitInfoImpl.<init>(PersistenceUnitInfoI mpl.java:111) at org.jboss.jpa.deployment.PersistenceUnitDeployment.start(PersistenceUnitDepl oyment.java:275) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.jboss.reflect.plugins.introspection.ReflectionUtils.invoke(ReflectionUti ls.java:59) at org.jboss.reflect.plugins.introspection.ReflectMethodInfoImpl.invoke(Reflect MethodInfoImpl.java:150) at org.jboss.joinpoint.plugins.BasicMethodJoinPoint.dispatch(BasicMethodJoinPoi nt.java:66) at org.jboss.kernel.plugins.dependency.KernelControllerContextAction$JoinpointD ispatchWrapper.execute(KernelControllerContextAction.java:241) at org.jboss.kernel.plugins.dependency.ExecutionWrapper.execute(ExecutionWrappe r.java:47) at org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchEx ecutionWrapper(KernelControllerContextAction.java:109) at org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchJo inPoint(KernelControllerContextAction.java:70) at org.jboss.kernel.plugins.dependency.LifecycleAction.installActionInternal(Li fecycleAction.java:221) at org.jboss.kernel.plugins.dependency.InstallsAwareAction.installAction(Instal lsAwareAction.java:54) at org.jboss.kernel.plugins.dependency.InstallsAwareAction.installAction(Instal lsAwareAction.java:42) at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInst allAction(SimpleControllerContextAction.java:62) at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(Ac cessControllerContextAction.java:71) at org.jboss.dependency.plugins.AbstractControllerContextActions.install(Abstra ctControllerContextActions.java:51) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractContr ollerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.j ava:1631) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractContr oller.java:934) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractCont roller.java:1082) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractCont roller.java:984) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.j ava:774) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.j ava:540) at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataDeployer.deploy(BeanMeta DataDeployer.java:121) at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataDeployer.deploy(BeanMeta DataDeployer.java:51) at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internal Deploy(AbstractSimpleRealDeployer.java:62) at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(Abstrac tRealDeployer.java:50) at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper .java:171) at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.j ava:1439) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(Dep loyersImpl.java:1157) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(Dep loyersImpl.java:1178) at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.ja va:1098) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractContr ollerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.j ava:1631) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractContr oller.java:934) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractCont roller.java:1082) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractCont roller.java:984) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.ja va:822) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.ja va:553) at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.ja va:781) at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.j ava:702) at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.proces s(MainDeployerAdapter.java:117) at org.jboss.system.server.profileservice.repository.ProfileDeployAction.instal l(ProfileDeployAction.java:70) at org.jboss.system.server.profileservice.repository.AbstractProfileAction.inst all(AbstractProfileAction.java:53) at org.jboss.system.server.profileservice.repository.AbstractProfileService.ins tall(AbstractProfileService.java:361) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractContr ollerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.j ava:1631) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractContr oller.java:934) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractCont roller.java:1082) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractCont roller.java:984) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.ja va:822) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.ja va:553) at org.jboss.system.server.profileservice.repository.AbstractProfileService.act ivateProfile(AbstractProfileService.java:306) at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(Profile ServiceBootstrap.java:271) at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:461) at org.jboss.Main.boot(Main.java:221) at org.jboss.Main$1.run(Main.java:556) at java.lang.Thread.run(Unknown Source) Thanks & Regards, VAMSI