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Date: Tue, 17 Oct 2006 17:14:17 +0530
From: "Saurabh Nanda" <saurabhnanda@gmail.com>
To: "Tomcat Users List" <users@tomcat.apache.org>
Subject: Re: Database connection pooling errors in Tomcat 5.5.17
In-Reply-To: <4534BDAB.5020902@cornell.edu>
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	 <4534BDAB.5020902@cornell.edu>

This is the complete stacktrace of the error if it helps. The
ojdbc14.jar file is in the WEB-INF/classes directory.

SEVERE: Servlet.service() for servlet test threw exception
java.lang.NullPointerException
        at org.apache.tomcat.dbcp.dbcp.DelegatingConnection.close(DelegatingConnection.java:151)
        at org.apache.tomcat.dbcp.dbcp.PoolableConnection.reallyClose(PoolableConnection.java:95)
        at org.apache.tomcat.dbcp.dbcp.PoolableConnectionFactory.destroyObject(PoolableConnectionFactory.java:301)
        at org.apache.tomcat.dbcp.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:883)
        at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:851)
        at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540)
        at testConf.TestConfServlet.doGet(TestConfServlet.java:37)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        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.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
        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)


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