Fix add ExceptionMapper provider

modules/server/src/main/java/org/jboss/wsf/stack/cxf/deployment/aspect/JAXRSBusDeploymentAspect.java

@@ -163,7 +163,7 @@ private static void setProviders(JAXRSServerFactoryBean bean, JAXRSDeploymentMet
          try {
             for (String cl : md.getScannedProviderClasses()) {
                Class<?> clazz = classLoader.loadClass(cl);
-               providers.add((ApplicationInfo)createSingletonInstance(clazz, bus));
+               providers.add(createSingletonInstance(clazz, bus));
             }
          } catch (ClassNotFoundException cnfe) {
             throw new WSFException(cnfe);