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Author

Resouce Allocation Exception when connecting to DB using connection pooling.

vikram nalagampalli
Ranch Hand

Joined: Oct 08, 2001
Posts: 91
Hello gurus,
I am trying to connect to DB using Connection pooling with WSAD. I get the following error when i tried to acess the backend. It Breaks at getConnection() method in my class.
I will really appreciate any suggestions or inputs on why i am getting this error.

FreePool E J2CA0046E: Method createManagedConnectionWithMCWrapper caught an exception during creation of the ManagedConnection for resource jdbc/v84dwnlodDS, throwing ResourceAllocationException. Original exception: java.lang.NullPointerException
at com.ibm.ws.rsadapter.spi.WSRdbDataSource.getConnection(WSRdbDataSource.java:409)
at com.ibm.ws.rsadapter.spi.WSManagedConnectionFactoryImpl.createManagedConnection(WSManagedConnectionFactoryImpl.java:558)
at com.ibm.ejs.j2c.poolmanager.FreePool.createManagedConnectionWithMCWrapper(FreePool.java:1170)
at com.ibm.ejs.j2c.poolmanager.FreePool.createOrWaitForConnection(FreePool.java:957)
at com.ibm.ejs.j2c.poolmanager.PoolManager.reserve(PoolManager.java:1408)
at com.ibm.ejs.j2c.ConnectionManager.allocateMCWrapper(ConnectionManager.java:589)
at com.ibm.ejs.j2c.ConnectionManager.allocateConnection(ConnectionManager.java:392)
at com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource.getConnection(WSJdbcDataSource.java:206)
at com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource.getConnection(WSJdbcDataSource.java:182)
at com.strykercorp.ortho.persistence.DBUtility.getConnection(DBUtility.java:177)
at com.strykercorp.ortho.persistence.demo.DemoServiceImpl.getDomesticSales(DemoServiceImpl.java:51)
at com.strykercorp.ortho.action.db2AS400.DailySalesAction.performTask(DailySalesAction.java:96)
at com.strykercorp.ortho.action.BaseAction.callPerformTask(BaseAction.java:191)
at com.strykercorp.ortho.action.BaseAction.execute(BaseAction.java:136)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:465)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1422)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:505)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:923)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:528)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:176)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:79)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:201)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:516)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:366)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:593)
----------------------------------------------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------------------------------------
[3/3/04 12:58:05:196 EST] 4403c89 ConnectionMan E J2CA0020E: The Connection Pool Manager could not allocate a Managed Connection: javax.resource.spi.ResourceAllocationException
at com.ibm.ejs.j2c.poolmanager.FreePool.createManagedConnectionWithMCWrapper(FreePool.java:1223)
at com.ibm.ejs.j2c.poolmanager.FreePool.createOrWaitForConnection(FreePool.java:957)
at com.ibm.ejs.j2c.poolmanager.PoolManager.reserve(PoolManager.java:1408)
at com.ibm.ejs.j2c.ConnectionManager.allocateMCWrapper(ConnectionManager.java:589)
at com.ibm.ejs.j2c.ConnectionManager.allocateConnection(ConnectionManager.java:392)
at com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource.getConnection(WSJdbcDataSource.java:206)
at com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource.getConnection(WSJdbcDataSource.java:182)
at com.strykercorp.ortho.persistence.DBUtility.getConnection(DBUtility.java:177)
at com.strykercorp.ortho.persistence.demo.DemoServiceImpl.getDomesticSales(DemoServiceImpl.java:51)
at com.strykercorp.ortho.action.db2AS400.DailySalesAction.performTask(DailySalesAction.java:96)
at com.strykercorp.ortho.action.BaseAction.callPerformTask(BaseAction.java:191)
at com.strykercorp.ortho.action.BaseAction.execute(BaseAction.java:136)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:465)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1422)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:505)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:923)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:528)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:176)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:79)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:201)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:516)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:366)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:593)
---- Begin backtrace for Nested Throwables
java.lang.NullPointerException
at com.ibm.ws.rsadapter.spi.WSRdbDataSource.getConnection(WSRdbDataSource.java:409)
at com.ibm.ws.rsadapter.spi.WSManagedConnectionFactoryImpl.createManagedConnection(WSManagedConnectionFactoryImpl.java:558)
at com.ibm.ejs.j2c.poolmanager.FreePool.createManagedConnectionWithMCWrapper(FreePool.java:1170)
at com.ibm.ejs.j2c.poolmanager.FreePool.createOrWaitForConnection(FreePool.java:957)
at com.ibm.ejs.j2c.poolmanager.PoolManager.reserve(PoolManager.java:1408)
at com.ibm.ejs.j2c.ConnectionManager.allocateMCWrapper(ConnectionManager.java:589)
at com.ibm.ejs.j2c.ConnectionManager.allocateConnection(ConnectionManager.java:392)
at com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource.getConnection(WSJdbcDataSource.java:206)
at com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource.getConnection(WSJdbcDataSource.java:182)
at com.strykercorp.ortho.persistence.DBUtility.getConnection(DBUtility.java:177)
at com.strykercorp.ortho.persistence.demo.DemoServiceImpl.getDomesticSales(DemoServiceImpl.java:51)
at com.strykercorp.ortho.action.db2AS400.DailySalesAction.performTask(DailySalesAction.java:96)
at com.strykercorp.ortho.action.BaseAction.callPerformTask(BaseAction.java:191)
at com.strykercorp.ortho.action.BaseAction.execute(BaseAction.java:136)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:465)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1422)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:505)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:923)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:528)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:176)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:79)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:201)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:516)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:366)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:593)
----------------------------------------------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------------------------------------
.
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R com.strykercorp.ortho.exception.persistenceException.DBException: SQLException while getting a pooled connection. Check parameter settings.
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.strykercorp.ortho.persistence.DBUtility.getConnection(DBUtility.java:183)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.strykercorp.ortho.persistence.demo.DemoServiceImpl.getDomesticSales(DemoServiceImpl.java:51)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.strykercorp.ortho.action.db2AS400.DailySalesAction.performTask(DailySalesAction.java:96)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.strykercorp.ortho.action.BaseAction.callPerformTask(BaseAction.java:191)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.strykercorp.ortho.action.BaseAction.execute(BaseAction.java:136)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:465)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1422)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:505)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:923)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:528)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:176)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:79)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:201)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:516)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:366)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:593)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R com.strykercorp.ortho.exception.BaseException: PerformTask: dto object from API is null
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.strykercorp.ortho.action.db2AS400.DailySalesAction.performTask(DailySalesAction.java:99)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.strykercorp.ortho.action.BaseAction.callPerformTask(BaseAction.java:191)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.strykercorp.ortho.action.BaseAction.execute(BaseAction.java:136)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:465)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1422)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:505)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
[3/3/04 12:58:05:286 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
[3/3/04 12:58:05:296 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:923)
[3/3/04 12:58:05:296 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:528)
[3/3/04 12:58:05:296 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:176)
[3/3/04 12:58:05:306 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:79)
[3/3/04 12:58:05:306 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:201)
[3/3/04 12:58:05:306 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
[3/3/04 12:58:05:306 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
[3/3/04 12:58:05:306 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
[3/3/04 12:58:05:306 EST] 4403c89 SystemErr R at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
[3/3/04 12:58:05:306 EST] 4403c89 SystemErr R at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:516)
[3/3/04 12:58:05:306 EST] 4403c89 SystemErr R at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:366)
[3/3/04 12:58:05:306 EST] 4403c89 SystemErr R at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:593)
 
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subject: Resouce Allocation Exception when connecting to DB using connection pooling.