Ah, regarding the
</handler-config> is not a valid root element in file vfs:/home/abr/workspace/api/dist/ubi-api.ear/ubi-api-ejb.jar/META-INF/soapHandler/handler-chain.xml ....
exception I see in your server log, are you using the proper handler chain descriptor format? Check http://anonsvn.jboss.org/repos/jbossws/framework/tags/jbossws-framework-3.4.0.GA/testsuite/test/java/org/jboss/test/ws/jaxws/handlerscope/jaxws-server-handlers.xml for an example.
Also, at first sight you seems to have issues with app already installed, when having deployment failures, consider restarting the app server before re-trying the deployment, as you might end up in an inconsistent status.