A kjar dependency which contains interface java classes fails to build with "JAXB can't handle interfaces." in BPM Suite 6.1

Solution Unverified - Updated -

Environment

  • Red Hat JBoss BPM Suite (BPMS) 6.1.0

Issue

  • A kjar dependency which contains interface java classes fails to build with "JAXB can't handle interfaces.";
  • After trying to Build&Deploy a kjar that contains a Interface class, it fails with the following Exception:
16:40:36,515 ERROR [org.jbpm.console.ng.bd.backend.server.DeploymentManagerEntryPointImpl] (http-localhost.localdomain/127.0.0.1:8080-2) Deployment of unit org.kie.example:redhat1:1.0.0-SNAPSHOT failed: java.lang.RuntimeException: java.lang.IllegalStateException: Unable to instantiate JAXBContext for deployment 'org.kie.example:redhat1:1.0.0-SNAPSHOT'.: org.jbpm.console.ng.bd.exception.DeploymentException: java.lang.RuntimeException: java.lang.IllegalStateException: Unable to instantiate JAXBContext for deployment 'org.kie.example:redhat1:1.0.0-SNAPSHOT'.
...

Resolution

The condition to reproduce is that a project has a dependency to a kjar which contains Interfaces. So there could be two workarounds:

  1. Remove kmodule.xml from the kjar that contains the Interfaces.
  2. Split Interfaces to a dependent jar.

Root Cause

The issue has been reported in the BZ1231111. There you can find the steps to reproduce the issue.

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