HI,
Can any one help why i am getting the below error:
Cannot create JDBC driver of class '' for connect URL 'null'
The Error Stack Trace is:
Cannot create JDBC driver of class '' for connect URL 'null'
java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(Unknown Source)
at java.sql.DriverManager.getDriver(Unknown Source)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1437)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1371)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
at com.crystaldecisions.reports.queryengine.driverImpl.jdbc.JDBCConnection.Open(Unknown Source)
at com.crystaldecisions.reports.queryengine.JDBConnectionWrapper.Open(SourceFile:123)
at com.crystaldecisions.reports.queryengine.Connection.br(SourceFile:1786)
at com.crystaldecisions.reports.queryengine.Connection.bs(SourceFile:505)
at com.crystaldecisions.reports.queryengine.Connection.t4(SourceFile:3020)
at com.crystaldecisions.reports.dataengine.dfadapter.DFAdapter.a(SourceFile:697)
at com.businessobjects.reports.sdk.requesthandler.DatabaseRequestHandler.a(SourceFile:309)
at com.businessobjects.reports.sdk.requesthandler.DatabaseRequestHandler.long(SourceFile:264)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.do(SourceFile:1150)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.if(SourceFile:660)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.a(SourceFile:166)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.a(SourceFile:528)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.call(SourceFile:526)
at com.crystaldecisions.reports.common.ThreadGuard.syncExecute(SourceFile:102)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.for(SourceFile:524)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.int(SourceFile:423)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.request(SourceFile:351)
at com.businessobjects.sdk.erom.jrc.a.a(SourceFile:54)
at com.businessobjects.sdk.erom.jrc.a.execute(SourceFile:67)
at com.crystaldecisions.proxy.remoteagent.RemoteAgent$a.execute(SourceFile:716)
at com.crystaldecisions.proxy.remoteagent.CommunicationChannel.a(SourceFile:125)
at com.crystaldecisions.proxy.remoteagent.RemoteAgent.a(SourceFile:537)
at com.crystaldecisions.sdk.occa.report.application.ds.a(SourceFile:186)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(SourceFile:878)
at com.crystaldecisions.sdk.occa.report.application.ReportSource.getPromptDatabaseLogOnInfos(SourceFile:815)
at com.crystaldecisions.sdk.occa.report.application.AdvancedReportSource.getPromptDatabaseLogOnInfos(SourceFile:338)
at com.businessobjects.report.web.a.e.a(SourceFile:174)
at com.businessobjects.report.web.a.e.a(SourceFile:97)
at com.businessobjects.report.web.a.e.a(SourceFile:343)
at com.businessobjects.report.web.a.t.a(SourceFile:1726)
at com.businessobjects.report.web.event.bw.broadcast(SourceFile:97)
at com.businessobjects.report.web.event.am.a(SourceFile:53)
at com.businessobjects.report.web.a.t.if(SourceFile:2104)
at com.businessobjects.report.web.e.a(SourceFile:300)
at com.businessobjects.report.web.e.a(SourceFile:202)
at com.businessobjects.report.web.e.a(SourceFile:135)
at com.crystaldecisions.report.web.ServerControl.a(SourceFile:607)
at com.crystaldecisions.report.web.ServerControl.processHttpRequest(SourceFile:342)
at org.apache.jsp.CrystalReport_jsp._jspService(CrystalReport_jsp.java:205)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Cannot create JDBC driver of class '' for connect URL 'null'
java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(Unknown Source)
at java.sql.DriverManager.getDriver(Unknown Source)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1437)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1371)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
at com.crystaldecisions.reports.queryengine.driverImpl.jdbc.JDBCConnection.Open(Unknown Source)
at com.crystaldecisions.reports.queryengine.JDBConnectionWrapper.Open(SourceFile:123)
at com.crystaldecisions.reports.queryengine.Connection.br(SourceFile:1786)
at com.crystaldecisions.reports.queryengine.Connection.
Thanks
Penchal