关于WebSphere5与AS400进行第一次数据库连接报错的问题，请教！！！(200分)

各位劳驾，有个问题向你请教！是关于WAS5通过DataSource与数据库连接，在应用程序获得连接时，第一次初始化，WAS连接池层在执行创建新的连接就会报错，错误是由于JTA的受管连接造成的。我到现在没有查明原因，显然是因为DataPools与DataBase Driver之间配合的问题，或者由于某个该死参数的设置问题，但是我没有查出原因。请与我联系：QQ：41639251，Mail：yongzhouli@126.com

怎么没有回应？

错误信息是什么？ 看看SystemErr.log？
另外你用什么做Driver的？ 我用的是toolbox, jt400.jar。

谢谢，我们用的是一样的驱动。
只是在第一次调用出错，然后就正常了，并不影响应用程序使用，问题应该是WAS与驱动之间的事情，问题错误如下：
[04-2-19 16:34:48:812 CST] 251ba91d FreePool E J2CA0046E: 为资源 jdbc/test 创建 ManagedConnection 期间，方法 createManagedConnectionWithMCWrapper 捕捉到异常，并抛出 ResourceAllocationException。原始异常：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.cdc.util.DataSourceConnectionBean.getConnection(DataSourceConnectionBean.java:39)
at com.cdc.util.Global.checkDate(Global.java:285)
at com.cdc.util.Global.init(Global.java:50)
at com.cdc.util.Global.<init>(Global.java:46)
at com.cdc.util.Global.getGlobal(Global.java:255)
at com.cdc.usecase.user.Login.<clinit>(Login.java:15)
at com.cdc.actions.login.LoginAction.execute(LoginAction.java:45)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:446)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:266)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1292)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:510)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
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:362)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:593)
[04-2-19 16:34:49:078 CST] 251ba91d ConnectionMan E J2CA0020E: 连接池管理器无法分配一个受管连接：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.cdc.util.DataSourceConnectionBean.getConnection(DataSourceConnectionBean.java:39)
at com.cdc.util.Global.checkDate(Global.java:285)
at com.cdc.util.Global.init(Global.java:50)
at com.cdc.util.Global.<init>(Global.java:46)
at com.cdc.util.Global.getGlobal(Global.java:255)
at com.cdc.usecase.user.Login.<clinit>(Login.java:15)
at com.cdc.actions.login.LoginAction.execute(LoginAction.java:45)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:446)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:266)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1292)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:510)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
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:362)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:593)

暂时想不出原因，补丁先打一下吧，ibm网站上面有下载，
was50_cf2和was50_fp2

呵呵，哥们谢谢！留个联系方式吧，我也研究几天了，没有办法解决！

我的邮箱：adnil.zhou@hdtworld.com

接受答案了.