Woodstox bundle wiring issue - NoClassDefFoundError

["alvin.kwekel" <al...@liberition.com>]

We experience a non-deterministic issue related to the bundle wiring of the
Woodstox bundle.

We use a custom Camel processor that invokes
exchange.getIn().getBody(DocumentSet.class). This will trigger Camel's type
converter mechanism to unmarshal the body to the requested class. Woodstox
is used as XML processor.



The issue will occasionally start to occur after a deployment. If the issue
occurs, it will continue with each new message coming into the Camel route.
If the issue doesn't occur after deployment it will not appear while
running.

We have a single KAR file containing multiple features. Karaf is cleaned by
removing the data folder before each deploy. After fully installing our KAR
file there is only the default version 4.4.1 of Woodstox exporting package
com.ctc.wstx.sr

ServiceMix 7.0.0.M2
Java 8
maven-bundle-plugin 2.4.0
features-maven-plugin 2.2.5

I have found no way to adequately reproduce the issue. I suspect the bundle
start order to be of relevance.

Please help me better understand the issue. What can make the class loading
fail at this point...? Could this be related to import/uses statement of the
bundle...?



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