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From "Shapira, Yoav" <Yoav.Shap...@mpi.com>
Subject RE: What is the difference in classloading between tomcat 4.1.x and 5.0.x
Date Wed, 01 Sep 2004 20:11:46 GMT

Hi,
Oh yeah, that reminds me, we might have a bug still present with
classloading from shared/lib in 5.0.x.  Try a much earlier version, e.g.
5.0.16, and let us know if that works.

Yoav Shapira
Millennium Research Informatics


>-----Original Message-----
>From: tomcat-user@erit.se [mailto:tomcat-user@erit.se]
>Sent: Wednesday, September 01, 2004 3:58 PM
>To: tomcat-user@jakarta.apache.org
>Subject: What is the difference in classloading between tomcat 4.1.x
and
>5.0.x
>
>
>In a web application running under Tomcat, I have defined a filter in
the
>web.xml file. The filter is pointing to a class that is packed in a
jar-
>file, and the jar-file is kept in the $CATALINA_HOME/shared/lib
directory.
>
>In Tomcat 4.1.x the application is working without any problems. When
>trying to run the same application under Tomcat 5.0.28 a
>java.lang.ClassNotFoundException is thrown.
>
>If the jar-file is placed in $CATALINA_HOME/common/lib, then the class
is
>found  and the application runs without problem.
>
>The same issue appears when using Listeners in the web.xml file.
>
>I have also tried the same setup with 5.0.27 which leads to the same
>result.
>
>What is it that has changed between 4.1x and 5.0.x, in regards to
>classloading, in order to cause this problem ?
>
>Any help in understanding this problem is appreciated.
>Regards
>Erik
>
>
> **********  stacktrace
>******************************************************
>2004-09-01 17:35:07
>NamingContextListener[/Catalina/localhost/webdialInstance]:   Resource
>parameters for UserTransaction = null
>2004-09-01 17:35:07 StandardContext[/webdialInstance]Exception starting
>filter Compress
>java.lang.ClassNotFoundException:
>se.erit.web.servlet.filters.gzip.GZIPFilter
>	at
>org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoade
r.ja
>va:1340)
>	at
>org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoade
r.ja
>va:1189)
>	at
>org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationF
ilte
>rConfig.java:211)
>	at
>org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(Applicati
onFi
>lterConfig.java:308)
>	at
>org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilt
erCo
>nfig.java:79)
>	at
>org.apache.catalina.core.StandardContext.filterStart(StandardContext.ja
va:3
>698)
>	at
>org.apache.catalina.core.StandardContext.start(StandardContext.java:434
9)
>	at
>org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.j
ava:
>823)
>	at
>org.apache.catalina.core.ContainerBase.access$000(ContainerBase.java:12
1)
>	at
>org.apache.catalina.core.ContainerBase$PrivilegedAddChild.run(Container
Base
>.java:143)
>	at java.security.AccessController.doPrivileged(Native Method)
>	at
>org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:805)
>	at
>org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
>	at
>org.apache.catalina.core.StandardHostDeployer.addChild(StandardHostDepl
oyer
>.java:903)
>	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>	at
>sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.ja
va:3
>9)
>	at
>sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccesso
rImp
>l.java:25)
>	at java.lang.reflect.Method.invoke(Method.java:324)
>	at
>org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:
216)
>	at
org.apache.commons.digester.SetNextRule.end(SetNextRule.java:256)
>	at org.apache.commons.digester.Rule.end(Rule.java:276)
>	at
>org.apache.commons.digester.Digester.endElement(Digester.java:1058)
>	at
>org.apache.catalina.util.CatalinaDigester.endElement(CatalinaDigester.j
ava:
>76)
>	at
org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown
>Source)
>	at
>org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Un
know
>n Source)
>	at
>org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDi
spat
>cher.dispatch(Unknown Source)
>	at
>org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unkn
own
>Source)
>	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
>	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
>	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown
Source)
>	at
org.apache.commons.digester.Digester.parse(Digester.java:1567)
>	at
>org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeplo
yer.
>java:488)
>	at
>org.apache.catalina.core.StandardHost.install(StandardHost.java:863)
>	at
>org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.jav
a:48
>3)
>	at
>org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
>	at
org.apache.catalina.startup.HostConfig.start(HostConfig.java:983)
>	at
>org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:3
49)
>	at
>org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleS
uppo
>rt.java:119)
>	at
>org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091)
>	at
org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
>	at
>org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
>	at
>org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478)
>	at
>org.apache.catalina.core.StandardService.start(StandardService.java:480
)
>	at
>org.apache.catalina.core.StandardServer.start(StandardServer.java:2313)
>	at org.apache.catalina.startup.Catalina.start(Catalina.java:556)
>	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>	at
>sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.ja
va:3
>9)
>	at
>sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccesso
rImp
>l.java:25)
>	at java.lang.reflect.Method.invoke(Method.java:324)
>	at
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:287)
>	at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:425)
>
>*************** end of trace
>***************************************************
>
>
>
>
>Erik Rosengren
>ERIT Consulting AB
>+46-70-7183333
>mailto:erik.rosengren@erit.se
>http://www.erit.se
>
>
>
>
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