Nate W [http://community.jboss.org/people/nel100] created the discussion "ClassCastException when trying to access web service" To view the discussion, visit: http://community.jboss.org/message/598141#598141 -------------------------------------------------------------- Hi, I'm developing a client with maven-jaxws-tools-plugin and CXF. After successfully creating a client and deploying it on JBoss (5.1.0GA), I tried to access a web service with this client, but without success. I get the following error: java.util.ServiceConfigurationError: javax.xml.ws.spi.Provider: Provider org.jboss.ws.core.jaxws.spi.ProviderImpl could not be instantiated: java.lang.ClassCastException           at java.util.ServiceLoader.fail(Unknown Source)           at java.util.ServiceLoader.access$100(Unknown Source)           at java.util.ServiceLoader$LazyIterator.next(Unknown Source)           at java.util.ServiceLoader$1.next(Unknown Source)           at javax.xml.ws.spi.Provider.getProviderUsingServiceLoader(Provider.java:146)           at javax.xml.ws.spi.Provider.provider(Provider.java:106)           at javax.xml.ws.Service.<init>(Service.java:57) Searching the web for help didn't come up with usefull results. Any suggestions? Thanks, Nethanel -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/598141#598141] Start a new discussion in JBoss Web Services at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]