[jira] [Commented] (JENA-536) Missing log4j.properties

["Andy Seaborne (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/JENA-536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13772389#comment-13772389 ] 

Andy Seaborne commented on JENA-536:
------------------------------------

There's a built-in log4j setup that is used if {{-Dlog4j.configuration}} is not set.

It looks like there used to be a log4j.properties in some other jar or other that is shaded into the server jar.  Due to tidying up elsewhere (libraries should not include a log4j.properties file), this is no longer put in the server jar to include.

A fix might be to include {{-Dlog4j.configuration=file:...}} if and only if the target file exists.  That would allow the user to choose the logging format but default to the built-in one.

                
> Missing log4j.properties
> ------------------------
>
>                 Key: JENA-536
>                 URL: https://issues.apache.org/jira/browse/JENA-536
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: Fuseki
>    Affects Versions: Fuseki 1.0.0
>            Reporter: Joachim Neubert
>
> On two different machines I run into a problem after upgrading from a Fuseki snapshot (June 28) to 1.0.0: Starting via "./fuseki start", I get:
> log4j:WARN No appenders could be found for logger (org.apache.jena.riot.stream.JenaIOEnvironment).
> log4j:WARN Please initialize the log4j system properly.
> log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
> Strange thing is: When I define the before non-existing env variable JAVA_OPTIONS, omitting " -Dlog4j.configuration=log4j.properties", all works fine.

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