[jira] [Updated] (TAVERNA-886) log4j is not always configured

["Stian Soiland-Reyes (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAVERNA-886?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stian Soiland-Reyes updated TAVERNA-886:
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    Summary: log4j is not always configured  (was: log4j is not always setup)

> log4j is not always configured
> ------------------------------
>
>                 Key: TAVERNA-886
>                 URL: https://issues.apache.org/jira/browse/TAVERNA-886
>             Project: Apache Taverna
>          Issue Type: Sub-task
>          Components: Taverna Command-line Tool
>    Affects Versions: osgi 0.2.1
>            Reporter: Stian Soiland-Reyes
>              Labels: logging
>             Fix For: command-line 3.2.0
>
>
> {code}
> log4j:ERROR A "org.apache.log4j.ConsoleAppender" object is not assignable to a "org.apache.log4j.Appender" variable.
> log4j:ERROR The class "org.apache.log4j.Appender" was loaded by 
> log4j:ERROR [org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader@7486b455[log4j:1.2.17(id=43)]] whereas object of type 
> log4j:ERROR "org.apache.log4j.ConsoleAppender" was loaded by [sun.misc.Launcher$AppClassLoader@677327b6].
> log4j:ERROR Could not instantiate appender named "CONSOLE".
> log4j:WARN No appenders could be found for logger (org.springframework.osgi.extender.internal.boot.ChainActivator).
> log4j:WARN Please initialize the log4j system properly.
> log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
> {code}
> Probably caused by log4j being initialized both outside OSGi (AppClassLoader) and inside OSGi.
> See {{Log4JConfiguration}} in incubator-taverna-osgi/taverna-app-configuration-impl - even though it has a static field to detect if it has already been initialized, this would probably be {{false}} inside OSGi as the class would appear 'new'.
> I believe the launcher is initializing it early so that logging is there before any of the OSGi services are initialized/configured.



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