[jira] Commented: (SMX4-424) ClassNotFoundException attempting to use Log4J LoggingEvent

["Maciej Prochniak (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/activemq/browse/SMX4-424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=55325#action_55325 ] 

Maciej Prochniak commented on SMX4-424:
---------------------------------------

Do  you have this log4j import in your bundle (containing camel route)? I guess the felix debug message (... was not found because ...) can be misleading - I think it should be your camel bundle that imports 'org.apache.log4j.spi' package

> ClassNotFoundException attempting to use Log4J LoggingEvent
> -----------------------------------------------------------
>
>                 Key: SMX4-424
>                 URL: https://issues.apache.org/activemq/browse/SMX4-424
>             Project: ServiceMix 4
>          Issue Type: Bug
>            Reporter: Darren Davison
>         Attachments: amq-error.log, amq-headers.log
>
>
> I have configured applications to use Log4J's JMSAppender in order to log messages on a queue as follows;
> {noformat}
> log4j.appender.jms=org.apache.log4j.net.JMSAppender
> log4j.appender.jms.InitialContextFactoryName=org.apache.activemq.jndi.ActiveMQInitialContextFactory
> log4j.appender.jms.ProviderURL=tcp://localhost:61616
> log4j.appender.jms.TopicBindingName=logTopic
> log4j.appender.jms.TopicConnectionFactoryBindingName=ConnectionFactory
> {noformat}
> Each application logging statement adds a new message to topic://logTopic on the broker.  I have a bundle deployed that attempts to route the messages from this topic with camel;
> {code}
> from("activemq:topic:logTopic")
>   .convertBodyTo(String.class)
>   .to("log:foo?level=DEBUG&showProperties=true&showHeaders=true");
> {code}
> When using servicemix 4 (Fuse 4.1.0.4), a stack trace is seen with the following message (enhanced using felix.log.level=4);
> {noformat}Caused by: java.lang.ClassNotFoundException: *** Class 'org.apache.log4j.spi.LoggingEvent' 
> was not found because bundle 56 does not import 'org.apache.log4j.spi' even though bundle 84 
> does export it. To resolve this issue, add an import for 'org.apache.log4j.spi' to bundle 56. ***
> {noformat}
> Bundles as follows;
> {noformat}smx@root:/> osgi/list|grep 56
> [  56] [Active     ] [       ] [   60] activemq-core (5.3.0.fuse)
> smx@root:/> osgi/list|grep 84
> [  84] [Active     ] [       ] [    8] OPS4J Pax Logging - API (1.3.0)
> {noformat}

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