org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null'

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Cannot create JDBC driver of class '' for connect URL 'null'
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Cannot create JDBC driver of class '' for connect URL 'null'
via roller-user by Sean Chang, 1 year ago
Cannot create JDBC driver of class '' for connect URL 'null'
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Cannot create JDBC driver of class '' for connect URL 'null'
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBCdriver of class '' for connect URL 'null'	at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1150)	at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)	at org.apache.roller.weblogger.business.DatabaseProvider.getConnection(DatabaseProvider.java:179)	at org.apache.roller.weblogger.business.DatabaseProvider.<init>(DatabaseProvider.java:141)	at org.apache.roller.weblogger.business.startup.WebloggerStartup.prepare(WebloggerStartup.java:171)	at org.apache.roller.weblogger.ui.core.RollerContext.contextInitialized(RollerContext.java:138)	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843)	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4350)	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:924)	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:887)	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1147)	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)	at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)	at org.apache.catalina.core.StandardService.start(StandardService.java:516)	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)	at org.apache.catalina.startup.Catalina.start(Catalina.java:578)	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 org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)	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 org.tanukisoftware.wrapper.WrapperStartStopApp.run(WrapperStartStopApp.java:238)	at java.lang.Thread.run(Thread.java:619)Caused by: java.lang.NullPointerException	at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(JdbcOdbcDriver.java:507)	at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(JdbcOdbcDriver.java:476)	at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(JdbcOdbcDriver.java:307)	at java.sql.DriverManager.getDriver(DriverManager.java:253)	at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1143)	... 35 more