Upgrade jbossws-cxf from 7.3.0 Final to 7.3.1.Final. Release notes : https://issues.redhat.com/secure/ReleaseNote.jspa?projectId=12310050&version=12439419

jbossws-comman as a dependent will be upgraded from 5.0.0.Final to 5.1.0.Final.

Some side note : 

To fix   https://issues.redhat.com/browse/JBWS-4385  it creates a JAXPDelegateClassLoader for each webservice invocation, this seems not necessary to create classloader for each invocation. This can be improved by not creating this JAXPDelegateClassLoader in Servlet.init() instead of creating for each request. https://issues.redhat.com/browse/JBWS-4433 is for this improvement. This change is included in jbossws-cxf-7.3.1.Final release.