Problem running EJB application: NoClassDefFoundError
Hello,
I've been having a lot of trouble getting an EJB dependant application to work. This is my first time using EJB and am using Netbeans 5.5 All I'm doing right now is trying to call the session facade's find method to retrieve an element from the database. I've tried this with both SQL Server and PostgreSQL and got the same results:
If I provide a non-existant PK to the method, it executes correctly and returns nothing, as it should. But if I provide an existing PK to the method it throws an EjbException cause by a NoClassDefFoundError, which is always related to the jdbc driver. The jdbc drivers are in my classpath and the drivers were configured within the IDE. I post the full stack trace below:
StandardWrapperValve[Controller]: Servlet.service() for servlet Controller threw exception
javax.ejb.EJBException
at com.sun.ejb.containers.BaseContainer.processSystemException(BaseContainer.java:3730)
at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:3630)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3431)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1247)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:192)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:118)
at $Proxy955.find(Unknown Source)
at com.adrianraine.bda.controller.Controller.processRequest(Controller.java:51)
at com.adrianraine.bda.controller.Controller.doGet(Controller.java:148)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:397)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:278)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:536)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:179)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:566)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:73)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:182)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:566)
at com.sun.enterprise.web.VirtualServerPipeline.invoke(VirtualServerPipeline.java:120)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:939)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:137)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:536)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:939)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:239)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.invokeAdapter(ProcessorTask.java:667)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.processNonBlocked(ProcessorTask.java:574)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:844)
at com.sun.enterprise.web.connector.grizzly.ReadTask.executeProcessorTask(ReadTask.java:287)
at com.sun.enterprise.web.connector.grizzly.ReadTask.doTask(ReadTask.java:212)
at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:252)
at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:75)
Caused by: java.lang.NoClassDefFoundError: com/microsoft/sqlserver/jdbc/PLPInputStream
at com.microsoft.sqlserver.jdbc.SQLServerResultSet.getObject(Unknown Source)
at oracle.toplink.essentials.internal.databaseaccess.DatabasePlatform.getObjectFromResultSet(DatabasePlatform.java:759)
at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.getObject(DatabaseAccessor.java:940)
at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.fetchRow(DatabaseAccessor.java:746)
at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:510)
at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:437)
at oracle.toplink.essentials.threetier.ServerSession.executeCall(ServerSession.java:465)
at oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:213)
at oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:199)
at oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.selectOneRow(DatasourceCallQueryMechanism.java:620)
at oracle.toplink.essentials.internal.queryframework.ExpressionQueryMechanism.selectOneRowFromTable(ExpressionQueryMechanism.java:2152)
at oracle.toplink.essentials.internal.queryframework.ExpressionQueryMechanism.selectOneRow(ExpressionQueryMechanism.java:2127)
at oracle.toplink.essentials.queryframework.ReadObjectQuery.executeObjectLevelReadQuery(ReadObjectQuery.java:350)
at oracle.toplink.essentials.queryframework.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:709)
at oracle.toplink.essentials.queryframework.DatabaseQuery.execute(DatabaseQuery.java:609)
at oracle.toplink.essentials.queryframework.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:677)
at oracle.toplink.essentials.queryframework.ObjectLevelReadQuery.executeInUnitOfWork(ObjectLevelReadQuery.java:731)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2218)
at oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:937)
at oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:894)
at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerImpl.findInternal(EntityManagerImpl.java:298)
at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerImpl.findInternal(EntityManagerImpl.java:274)
at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerImpl.find(EntityManagerImpl.java:130)
at com.sun.enterprise.util.EntityManagerWrapper.find(EntityManagerWrapper.java:477)
at com.adrianraine.bda.ejb.PersonaFacade.find(PersonaFacade.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1050)
at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:165)
at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:2766)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:3847)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:184)
... 30 more
I'm running out of ideas and have no idea of what's going on. Right now I'm attempting this with a single entity class, but when I attempt it with several and I step through the code with the debugger it always crashes in a different place. It just doesn't make much sense.
So any help at all would be extremely appreciated.
Thanks
