[jboss-user] [Installation, Configuration & Deployment] - Log4j conflicts and classLoading nightmare in jboss 4.0.5
Hi all,
I'm seriousely tearing my hair off with jboss 4.0.5 classloding problems
We're trying to migrate from jboss 4.0.3.SP1 to jboss 4.0.5.
About 10 applications are concerned (all of them are ears) and each of them have their
loader repository defined like below in jboss-app.xml file
Each application has it own log4j.jar
<jboss-app>
<loader-repository>nis_portail:loader=my_appXloader</loader-repository>
</jboss-app>
When we start Jboss after putting webapps in deploy directory.
We're getting the error messages below:
log4j:ERROR A "org.jboss.logging.util.OnlyOnceErrorHandler" object is not
assignable to a "org.apache.log4j.spi.ErrorHandler" variable.
log4j:ERROR The class "org.apache.log4j.spi.ErrorHandler" was loaded by
log4j:ERROR [org.jboss.mx.loading.UnifiedClassLoader3@7f30f8{
url=file:/D:/Documents/developpements/workspace/nis_portail_ear/deploy/portail_ear.ear/
,addedOrder=48}] whereas object of type
log4j:ERROR "org.jboss.logging.util.OnlyOnceErrorHandler" was loaded by
[org.jboss.system.server.NoAnnotationURLClassLoader@1a33d48].
log4j:ERROR Could not create an Appender. Reported error follows.
java.lang.ClassCastException: org.jboss.logging.appender.DailyRollingFileAppender
at org.apache.log4j.xml.DOMConfigurator.parseAppender(DOMConfigurator.java:165)
at org.apache.log4j.xml.DOMConfigurator.findAppenderByName(DOMConfigurator.java:140)
at
org.apache.log4j.xml.DOMConfigurator.findAppenderByReference(DOMConfigurator.java:153)
at
org.apache.log4j.xml.DOMConfigurator.parseChildrenOfLoggerElement(DOMConfigurator.java:415)
at org.apache.log4j.xml.DOMConfigurator.parseRoot(DOMConfigurator.java:384)
at org.apache.log4j.xml.DOMConfigurator.parse(DOMConfigurator.java:783)
at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:666)
at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:616)
at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.java:602)
at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:460)
at org.apache.log4j.LogManager.(LogManager.java:113)
at org.apache.log4j.Logger.getLogger(Logger.java:85)
I've seen in the forum that a solution to solve this problem is to remove
log4j.jar from application librairies.
I would like to know if there is not another solution because some applications MUST use
spécific log4j.jar versions to log properly.
And all theses application worked fine with JBoss4.0.3SP1
Any suggestion would be greatly appreciated.
Meissa
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