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From "Jan Uyttenhove" <juytt...@hotmail.com>
Subject Re: [C2]:Go For Beta: SQLTransformer warning
Date Fri, 01 Jun 2001 23:29:04 GMT
Sylvain,

I noticed this before, it is indeed be caused by the connection being closed
twice
Inside the executeQuery method, the methods Query.execute() and Query.next()
both close the db connection.
I think I removed the conn.close() call from the finally block of the
Query.close() method to solve the problem.

Jan

----- Original Message -----
From: "Sylvain Wallez" <sylvain.wallez@anyware-tech.com>
To: <cocoon-dev@xml.apache.org>
Sent: Friday, June 01, 2001 6:52 PM
Subject: Re: [C2]:Go For Beta


>
>
> Carsten Ziegeler a écrit :
> >
> > Hi C2ers!
> >
> > I think we are all +1 on the beta question. The only real
> > remaining problem is that someone has to actually do it.
> >
> > So here is the roadmap for beta 1 that I will follow unless
> > someone kills me - or threatens to :-):
> >
> > - Code-freeze and testing of the examples to be completed
> >   by Sunday (MEST).
> >   Only bug fixing should be checked in from now.
> >   Can someone test the database examples?
>
> They're functionnal, but there are some "message output is null" in the
> tomcat's console, and the log file contains the following exception on
> the Simple SQL sample.
>
> DEBUG   84521   [cocoon  ] (Thread-10): Retrieving a
> org.apache.avalon.excalibur.datasource.JdbcConnection from the pool
> DEBUG   84521   [cocoon  ] (Thread-10): JdbcConnection was closed,
> creating one to take its place
> DEBUG   84521   [cocoon  ] (Thread-10): JdbcConnection object created
> DEBUG   84521   [cocoon  ] (Thread-10): Returning a
> org.apache.avalon.excalibur.datasource.JdbcConnection to the pool
> WARN    84521   [cocoon  ] (Thread-10): Pool interrupted while waiting
> for lock.
> java.lang.IndexOutOfBoundsException: Index: -1, Size: 0
> at java.util.ArrayList.RangeCheck(ArrayList.java:491)
> at java.util.ArrayList.remove(ArrayList.java:375)
> at
> org.apache.avalon.excalibur.pool.DefaultPool.put(DefaultPool.java:174)
> at
>
org.apache.avalon.excalibur.datasource.JdbcConnection.close(JdbcConnection.j
ava:134)
> at
>
org.apache.cocoon.transformation.SQLTransformer$Query.close(SQLTransformer.j
ava:614)
> at
>
org.apache.cocoon.transformation.SQLTransformer$Query.next(SQLTransformer.ja
va:597)
> at
>
org.apache.cocoon.transformation.SQLTransformer.executeQuery(SQLTransformer.
java:194)
> at
>
org.apache.cocoon.transformation.SQLTransformer.executeQuery(SQLTransformer.
java:198)
> at
>
org.apache.cocoon.transformation.SQLTransformer.endExecuteQueryElement(SQLTr
ansformer.java:294)
> at
>
org.apache.cocoon.transformation.SQLTransformer.endElement(SQLTransformer.ja
va:396)
> at
> org.apache.cocoon.components.sax.XMLTeePipe.endElement(XMLTeePipe.java:84)
> at org.apache.xerces.parsers.SAXParser.endElement(SAXParser.java:1403)
> at
>
org.apache.xerces.validators.common.XMLValidator.callEndElement(XMLValidator
.java:1436)
> at
>
org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XM
LDocumentScanner.java:1260)
> at
>
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.
java:381)
> at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1035)
> at
> org.apache.cocoon.components.parser.JaxpParser.parse(JaxpParser.java:72)
> at
>
org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:115)
> at
>
org.apache.cocoon.components.pipeline.CachingEventPipeline.process(CachingEv
entPipeline.java:220)
> at
>
org.apache.cocoon.components.pipeline.CachingStreamPipeline.process(CachingS
treamPipeline.java:344)
> at org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:3705)
> at org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:1337)
> at org.apache.cocoon.sitemap.Handler.process(Handler.java:175)
> at org.apache.cocoon.sitemap.Manager.invoke(Manager.java:94)
> at org.apache.cocoon.Cocoon.process(Cocoon.java:293)
> at
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:471)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
> at
> org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)
> at org.apache.tomcat.core.Handler.service(Handler.java:286)
> at
> org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
> at
>
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79
7)
> at
> org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
> at
>
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpC
onnectionHandler.java:210)
> at
> org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
> at
> org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
> at java.lang.Thread.run(Thread.java:484)
>
> Couldn't this be caused by the connection being closed twice ? A quick
> look to SQLTransformer did not reveal it, but maybe it could be worth
> investigating this way.
>
> > - Total code-freeze starting monday to prepare the distribution.
> > - Release of the beta on Wednesday
> >
> > I will prepare the distribution and put it on Daedalus on
> > Wednesday and Giacomo will write the announcement.
> >
> Great, great :)
>
> > Carsten
> >
>
> --
> Sylvain Wallez
> Anyware Technologies - http://www.anyware-tech.com
>
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