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https://issues.apache.org/jira/browse/FELIX-5107?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler closed FELIX-5107.
-----------------------------------
> NullPointerException in
> org.apache.felix.eventadmin.impl.adapter.LogEventAdapter if log msg is empty
> ----------------------------------------------------------------------------------------------------
>
> Key: FELIX-5107
> URL: https://issues.apache.org/jira/browse/FELIX-5107
> Project: Felix
> Issue Type: Bug
> Components: Event Admin
> Affects Versions: eventadmin-1.4.4
> Reporter: Torsten Mielke
> Assignee: David Bosschaert
> Labels: event, karaf
> Fix For: eventadmin-1.4.6
>
>
> If a log event contains an empty message, it raises an NPE in
> https://github.com/apache/felix/blob/trunk/eventadmin/impl/src/main/java/org/apache/felix/eventadmin/impl/adapter/LogEventAdapter.java#L180
> As a result the Karaf container will raise
> {noformat}
> 'org.apache.felix.eventadmin.impl.adapter.LogEventAdapter$1@XXXXXX' is
> removed as a LogListener, since it threw an exception.
> {noformat}
> to stderr and remove this event admin instance.
> An empty log message may sound like a stupid thing to do but may happen as a
> result of e.g. running a Camel route like this one deployed in a Karaf
> container:
> {code:java}
> public class LogExceptionRoute extends RouteBuilder {
>
> @Override
> public void configure() {
> onException(Throwable.class)
> .handled(true)
> .log(LoggingLevel.ERROR, "${exception.message}");
> from("jetty:http://0.0.0.0:8005";)
> .throwException(new Exception());
> }
> }
> {code}
> The route raises an empty exception (i.e. no detail message) which then get
> logged in the onException() policy, causing the error above.
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