Hi,
The Tomcat version I am using is 7.0.40 and the connection pool is
tomcat-jdbc. I am having trouble configuring the connection pool. The
configuration does not trouble as long as I do not include initialSize and
factory attributes. But when I include any of these two, Tomcat starts
throwing the below exception:
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver
class 'oracle.jdbc.OracleDriver'
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1429)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1371)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.getLogWriter(BasicDataSource.java:1098)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory.createDataSource(BasicDataSourceFactory.java:350)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory.getObjectInstance(BasicDataSourceFactory.java:156)
at
org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:143)
at
javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
at org.apache.naming.NamingContext.lookup(NamingContext.java:843)
at org.apache.naming.NamingContext.lookup(NamingContext.java:154)
at org.apache.naming.NamingContext.lookup(NamingContext.java:831)
at org.apache.naming.NamingContext.lookup(NamingContext.java:168)
at
org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1093)
at
org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:672)
at
org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:271)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at
org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5269)
at
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
at
org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1114)
at
org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1672)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1420)
Why is this happening and why this happens specifically when I include
these two attributes? Any help is appreciated. Thanks.
-Anu
