I have a default JBossAS 4.2.3 server on which I've installed JBossWS-Metro 3.0.3. I have an EAR which uses a web service client. When I try to invoke the client I get this: | java.lang.ClassNotFoundException: No ClassLoaders found for: org.jboss.ws.core.jaxws.spi.ProviderImpl | at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:212) | at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:521) | at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:415) | at java.lang.ClassLoader.loadClass(ClassLoader.java:251) | at javax.xml.ws.spi.ProviderLoader.loadProvider(ProviderLoader.java:90) | at javax.xml.ws.spi.Provider.provider(Provider.java:82) | at javax.xml.ws.Service.<init>(Service.java:81) | at com.pjm.emkt.emkt.xml.wsdl.MarketQueryService.<init>(MarketQueryService.java:46) | Does this mean JBoss is trying to use the native implementation rather than Metro? Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4182224#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...