Web service fails to connect with "javax.xml.ws.WebServiceException: Unable to load Provider" on JBoss

Issue

• Web services fail to connect in JBoss using custom or 3rd party web services provider

• When attempting to connect, the following expception is thrown:

  javax.xml.ws.WebServiceException: Unable to load Provider: Failed to load javax.xml.ws.spi.
  Provider: org.jboss.ws.core.jaxws.spi.ProviderImpl
          at javax.xml.ws.spi.Provider.provider(Provider.java:98)
          at javax.xml.ws.Service.<init>(Service.java:83)