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From "Rumpa Giri" <rg...@healthfusion.com>
Subject RE: [dbcp] Help! getting AbstractMethodError
Date Fri, 01 Apr 2005 15:23:13 GMT
Thanks for the reply.

We installed tomcat from scratch on QA server and installed, the problem was
not there. 

Then we compared as you mentioned all the jars, it was the jdbc driver.
There were two jdbc driver jars under the class path one in the
CATALINA_HOME/common/lib/oci jdbc driver and one under the webapp/web-inf/
jdbc thin driver.

Removing it from the web-inf folder and placing only one jdbc driver fixed
the issue.

Thanks,
Rumpa Giri

-----Original Message-----
From: Dirk Verbeeck [mailto:dirk.verbeeck@pandora.be] 
Sent: Thursday, March 31, 2005 10:16 PM
To: Jakarta Commons Users List
Subject: Re: [dbcp] Help! getting AbstractMethodError

You should make a list of differences between you new system and the 
QA setup. Start with VM version, global tomcat jars (including dbcp 
version) and application specific ones.
In this specific case check the database driver jar, make sure you use 
the same jar everywhere.
If you find the sulotion please add it to the wiki FAQ page or let us 
know.

-- Dirk

Rumpa Giri wrote:
> I am unable to figure out why I am getting this following exception.
> When I do a brand new installation, everything works, but on our QA server
> installing on top of existing tomcat, and as a part of existing web
> application, it throws the exception. Any help will be appreciated.
> 
> Thanks and Regards,
> Rumpa Giri
> 
> 2005-03-30 17:09:32 StandardWrapperValve[jsp]: Servlet.service() for
servlet
> jsp threw exception
> java.lang.AbstractMethodError
>  at
>
org.apache.commons.dbcp.DelegatingResultSet.getClob(DelegatingResultSet.java
> :529)
>  at
>
org.apache.commons.dbcp.DelegatingResultSet.getClob(DelegatingResultSet.java
> :529)
>  at net.sf.hibernate.type.ClobType.get(ClobType.java:32)
>  at net.sf.hibernate.type.NullableType.nullSafeGet(NullableType.java:62)
>  at net.sf.hibernate.type.NullableType.nullSafeGet(NullableType.java:53)
>  at net.sf.hibernate.type.AbstractType.hydrate(AbstractType.java:66)
>  at net.sf.hibernate.loader.Loader.hydrate(Loader.java:686)
>  at net.sf.hibernate.loader.Loader.loadFromResultSet(Loader.java:627)
>  at net.sf.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:586)
>  at net.sf.hibernate.loader.Loader.getRow(Loader.java:501)
>  at net.sf.hibernate.loader.Loader.getRowFromResultSet(Loader.java:213)
>  at net.sf.hibernate.loader.Loader.doQuery(Loader.java:281)
>  at
>
net.sf.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader
> .java:133)
>  at net.sf.hibernate.loader.Loader.loadEntity(Loader.java:911)
>  at net.sf.hibernate.loader.Loader.loadEntity(Loader.java:931)
>  at net.sf.hibernate.loader.EntityLoader.load(EntityLoader.java:59)
>  at net.sf.hibernate.loader.EntityLoader.load(EntityLoader.java:51)
>  at
> net.sf.hibernate.persister.EntityPersister.load(EntityPersister.java:415)
>  at net.sf.hibernate.impl.SessionImpl.doLoad(SessionImpl.java:2130)
>  at net.sf.hibernate.impl.SessionImpl.doLoadByClass(SessionImpl.java:2000)
>  at net.sf.hibernate.impl.SessionImpl.get(SessionImpl.java:1936)
>  at com.hfc.dao.AbstractDAO.find(Unknown Source)
>  at com.hfc.ui.context.FSRViewContext.getCSRResponse(Unknown Source)
>  at
org.apache.jsp.electronic.csr.input.fsr_jsp._jspService(fsr_jsp.java:77)
>  at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
>  at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
>  at
>
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2
> 98)
>  at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
>  at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
>  at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
>  at
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> FilterChain.java:237)
>  at
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> ain.java:157)
>  at com.hfc.hibernate.HibernateFilter.doFilter(Unknown Source)
>  at
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> FilterChain.java:186)
>  at
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> ain.java:157)
>  at
>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:214)
>  at
>
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> t.java:104)
>  at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
>  at
>
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContext
> Valve.java:198)
>  at
>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
> va:152)
>  at
>
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> t.java:104)
>  at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
>  at
>
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137
> )
>  at
>
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> t.java:104)
>  at
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117
> )
>  at
>
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> t.java:102)
>  at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
>  at
>
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
> :109)
>  at
>
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> t.java:104)
>  at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
>  at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
>  at
org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
>  at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:296)
>  at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:372)
>  at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:694)
>  at
>
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:626)
>  at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:807)
>  at
>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
> a:644)
>  at java.lang.Thread.run(Thread.java:534)
> 
> 



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