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From "Shrini Joshi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (FELIX-2108) The log4j from felix launcher is messing up felix osgi container
Date Tue, 23 Feb 2010 09:29:27 GMT

    [ https://issues.apache.org/jira/browse/FELIX-2108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12837166#action_12837166
] 

Shrini Joshi commented on FELIX-2108:
-------------------------------------

Spot on. I should have googled with error message "XXXAppender is not assignable to Appender"
before raising this issue.

Thanks again mate.
Shrini



> The log4j from felix launcher is messing up felix osgi container 
> -----------------------------------------------------------------
>
>                 Key: FELIX-2108
>                 URL: https://issues.apache.org/jira/browse/FELIX-2108
>             Project: Felix
>          Issue Type: Bug
>          Components: Framework
>    Affects Versions: felix-1.4.1
>            Reporter: Shrini Joshi
>            Assignee: Karl Pauls
>         Attachments: felix-launcher.zip, log4jconfig_1.0.0.jar, osgi-simple-service.zip
>
>
> **** This issue is not type question rather than a bug ****
> I have created a launcher programme which is responsible for laoding the config values
and instantiating the felix container (1.4.1). 
> Everything is working fine except for one small glitch.  Please take a look for following
error message thrown by the log4j bundle. 
> The launcher programme is using log4j for logging. But when it starts the felix container,
log4j bundle is installed since it is used by the application itself. 
> I have listed deployed bundles further below. 
> My view is, the log4j library loaded by launcher is visible to felix container and hence
log4j bundle fails to start cleanly. This is going to be a big problem for dpeloyment. 
> I am using felix 1.4.1, is that too old to be good? 
> Is there any setting that I need to pass to instruct the felix to create comepletly new
classloader as system-classloader? Being a OSGI container I expected it to create new class-loader
as system-classloader but now I feel it does not.  
> Can someome please help me understand? 
> Shrini
> ===
> log4j: reset attribute= "false".
> log4j: Threshold ="null".
> log4j: Level value for root is  [DEBUG].
> log4j: root level set to DEBUG
> log4j: Class name: [org.apache.log4j.RollingFileAppender]
> log4j: Setting property [file] to [**************/launcher.log].
> log4j: Setting property [append] to [true].
> log4j: Setting property [maxFileSize] to [10MB].
> log4j: Setting property [maxBackupIndex] to [15].
> log4j: Parsing layout of class: "org.apache.log4j.PatternLayout"
> log4j: Setting property [conversionPattern] to [%d{dd MMM yyyy HH:mm:ss,SSS} %t %-5p
%c{2} - %m%n].
> log4j: setFile called: **************/launcher.log, true
> log4j: setFile ended
> log4j: Adding appender named [FILE] to category [root].
> -> log4j:ERROR A "org.apache.log4j.xml.DOMConfigurator" object is not assignable to
a "org.apache.log4j.spi.Configurator" variable.
> log4j:ERROR The class "org.apache.log4j.spi.Configurator" was loaded by
> log4j:ERROR [6.0] whereas object of type
> log4j:ERROR "org.apache.log4j.xml.DOMConfigurator" was loaded by [sun.misc.Launcher$AppClassLoader@17182c1].
> log4j:ERROR Could not instantiate configurator [org.apache.log4j.xml.DOMConfigurator].
> log4j:WARN No appenders could be found for logger (org.springframework.osgi.extender.internal.activator.ContextLoaderListener).
> log4j:WARN Please initialize the log4j system properly.
> =====
> [   0] [Active     ] [    0] System Bundle (2.0.1)
> [   1] [Active     ] [    5] AOP Alliance API (1.0.0)
> [   2] [Active     ] [    5] Apache Commons Collections (3.2.0)
> [   3] [Active     ] [    5] Apache Commons Lang (2.4.0)
> [   4] [Active     ] [    5] Apache Commons Logging (1.1.1)
> [   5] [Active     ] [    5] Apache Commons Pool (1.3.0)
> [   6] [Active     ] [    5] Apache Log4J (1.2.15)
> [   7] [Active     ] [    5] Apache Felix Bundle Repository (1.4.2)
> [   8] [Active     ] [    5] Apache Felix Shell Service (1.4.1)
> [   9] [Active     ] [    5] Apache Felix Shell TUI (1.4.1)
> [  10] [Active     ] [    5] Spring AOP (2.5.6)
> [  11] [Active     ] [    5] Spring Beans (2.5.6)
> [  12] [Active     ] [    5] Spring Context (2.5.6)
> [  13] [Active     ] [    5] Spring Context Support (2.5.6)
> [  14] [Active     ] [    5] Spring Core (2.5.6)
> [  15] [Active     ] [    5] spring-osgi-core (1.2.1)
> [  16] [Active     ] [    5] spring-osgi-extender (1.2.1)
> [  17] [Active     ] [    5] spring-osgi-io (1.2.1)
> ============

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