Ref: Cannot create JDBC driver of class '' for connect URL 'null'

Tue, 05 Jun 2007 06:47:54 -0700 

Hi,

I am running an application using tomcat5.x and getting following error:
The error log is as follows:

Jun 5, 2007 7:12:31 PM org.apache.catalina.core.ApplicationContext log
SEVERE: AdminAcct Initialization Failure
javax.faces.FacesException: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' at com.sun.rave.faces.data.CachedRowSetDataModel.executeIfNecessary(CachedRowSetDataModel.java:374) at com.sun.rave.faces.data.CachedRowSetDataModel.isRowAvailable(CachedRowSetDataModel.java:133) at com.sun.rave.faces.data.CachedRowSetDataModel.setRowIndex(CachedRowSetDataModel.java:286) at com.sun.rave.faces.data.CachedRowSetDataModel.setWrappedData(CachedRowSetDataModel.java:323) at com.sun.rave.faces.data.CachedRowSetDataModel.setCachedRowSet(CachedRowSetDataModel.java:348) 
       at acctapps.AdminAcct._init(AdminAcct.java:50)
       at acctapps.AdminAcct.init(AdminAcct.java:464)
at com.sun.rave.web.ui.appbase.servlet.LifecycleListener.fireInit(LifecycleListener.java:555) at com.sun.rave.web.ui.appbase.servlet.LifecycleListener.attributeAdded(LifecycleListener.java:405) at org.apache.catalina.connector.Request.setAttribute(Request.java:1398) at org.apache.catalina.connector.RequestFacade.setAttribute(RequestFacade.java:500) at javax.servlet.ServletRequestWrapper.setAttribute(ServletRequestWrapper.java:283) at javax.servlet.ServletRequestWrapper.setAttribute(ServletRequestWrapper.java:283) at com.sun.faces.context.RequestMap.put(ExternalContextImpl.java:622) at com.sun.faces.application.ApplicationAssociate.createAndMaybeStoreManagedBeans(ApplicationAssociate.java:279) at com.sun.faces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:78) 
       at com.sun.faces.el.impl.NamedValue.evaluate(NamedValue.java:125)
at com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:243) at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:173) at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:154) at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.pageBean(ViewHandlerImpl.java:666) at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.pageBean(ViewHandlerImpl.java:641) at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.renderView(ViewHandlerImpl.java:249) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117) 
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.sun.rave.web.ui.util.UploadFilter.doFilter(UploadFilter.java:198) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) 
       at java.lang.Thread.run(Thread.java:595)
Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:780) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at com.sun.sql.rowset.internal.CachedRowSetXReader.connect(CachedRowSetXReader.java:344) at com.sun.sql.rowset.internal.CachedRowSetXReader.readData(CachedRowSetXReader.java:126) at com.sun.sql.rowset.CachedRowSetXImpl.execute(CachedRowSetXImpl.java:968) at com.sun.sql.rowset.CachedRowSetXImpl.execute(CachedRowSetXImpl.java:1428) at com.sun.rave.faces.data.CachedRowSetDataModel.executeIfNecessary(CachedRowSetDataModel.java:372) 
       ... 46 more
Caused by: java.sql.SQLException: No suitable driver
       at java.sql.DriverManager.getDriver(DriverManager.java:243)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:773) 
       ... 52 more
Jun 5, 2007 7:12:31 PM org.apache.catalina.core.ApplicationContext log
INFO: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' 
Jun 5, 2007 7:12:32 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet Faces Servlet threw exception
com.sun.rave.web.ui.appbase.ApplicationException: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.cleanup(ViewHandlerImpl.java:559) at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.renderView(ViewHandlerImpl.java:276) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117) 
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.sun.rave.web.ui.util.UploadFilter.doFilter(UploadFilter.java:198) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) 
       at java.lang.Thread.run(Thread.java:595)
Caused by: javax.faces.FacesException: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' at com.sun.rave.faces.data.CachedRowSetDataModel.executeIfNecessary(CachedRowSetDataModel.java:374) at com.sun.rave.faces.data.CachedRowSetDataModel.isRowAvailable(CachedRowSetDataModel.java:133) at com.sun.rave.faces.data.CachedRowSetDataModel.setRowIndex(CachedRowSetDataModel.java:286) at com.sun.rave.faces.data.CachedRowSetDataModel.setWrappedData(CachedRowSetDataModel.java:323) at com.sun.rave.faces.data.CachedRowSetDataModel.setCachedRowSet(CachedRowSetDataModel.java:348) 
       at acctapps.AdminAcct._init(AdminAcct.java:50)
       at acctapps.AdminAcct.init(AdminAcct.java:464)
at com.sun.rave.web.ui.appbase.servlet.LifecycleListener.fireInit(LifecycleListener.java:555) at com.sun.rave.web.ui.appbase.servlet.LifecycleListener.attributeAdded(LifecycleListener.java:405) at org.apache.catalina.connector.Request.setAttribute(Request.java:1398) at org.apache.catalina.connector.RequestFacade.setAttribute(RequestFacade.java:500) at javax.servlet.ServletRequestWrapper.setAttribute(ServletRequestWrapper.java:283) at javax.servlet.ServletRequestWrapper.setAttribute(ServletRequestWrapper.java:283) at com.sun.faces.context.RequestMap.put(ExternalContextImpl.java:622) at com.sun.faces.application.ApplicationAssociate.createAndMaybeStoreManagedBeans(ApplicationAssociate.java:279) at com.sun.faces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:78) 
       at com.sun.faces.el.impl.NamedValue.evaluate(NamedValue.java:125)
at com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:243) at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:173) at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:154) at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.pageBean(ViewHandlerImpl.java:666) at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.pageBean(ViewHandlerImpl.java:641) at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.renderView(ViewHandlerImpl.java:249) 
       ... 24 more
Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:780) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at com.sun.sql.rowset.internal.CachedRowSetXReader.connect(CachedRowSetXReader.java:344) at com.sun.sql.rowset.internal.CachedRowSetXReader.readData(CachedRowSetXReader.java:126) at com.sun.sql.rowset.CachedRowSetXImpl.execute(CachedRowSetXImpl.java:968) at com.sun.sql.rowset.CachedRowSetXImpl.execute(CachedRowSetXImpl.java:1428) at com.sun.rave.faces.data.CachedRowSetDataModel.executeIfNecessary(CachedRowSetDataModel.java:372) 
       ... 46 more
Caused by: java.sql.SQLException: No suitable driver
       at java.sql.DriverManager.getDriver(DriverManager.java:243)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:773) 
       ... 52 more
I would appreciate if any one could help me with this. I running the application using Netbeans 5.5 and have setup the MySql and made the connection on that. Further I have copied the mysqlxxx.jar in commons/lib folder. Please help me to find the cause of the error. 

Thanks,
Pranav Aggarwal

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