I have changed the code in SOAPContentElement that deals with the array part. The original code says if (obj != null) { Class objType = obj.getClass(); boolean isAssignable = JavaUtils.isAssignableFrom(javaType, objType); if (isAssignable == false && javaType.isArray()) { try { Method toArrayMethod = objType.getMethod("toArray", new Class[] {}); Class returnType = toArrayMethod.getReturnType(); if (JavaUtils.isAssignableFrom(javaType, returnType)) { Method getValueMethod = objType.getMethod("getValue", new Class[] {}); Object value = getValueMethod.invoke(obj, new Object[] {}); if (value != null) { // Do not invoke toArray if getValue returns null obj = toArrayMethod.invoke(obj, new Object[] {}); } else { // if the fragment did not indicate a null return // by an xsi:nil we return an empty array Class componentType = javaType.getComponentType(); obj = Array.newInstance(componentType, 0); } isAssignable = true; } } catch (Exception e) { // ignore } } I think it is better to look to the object that was deserialized to decide wether this is an array. If it turns out to be an array then look for a setter method that takes this array class as argument. If that exists set its value. I think this way of unmarshalling fits better to the way the client artifacts are generated by wstools. This is my version of the code if (obj != null) { Class objType = obj.getClass(); boolean isAssignable = JavaUtils.isAssignableFrom(javaType, objType); if (isAssignable == false && objType.isArray()) { // Changed try { log.debug("Try to locate setValue method "+javaType); Method setValueMethod = javaType.getMethod("setValue", new Class[] {objType}); log.debug("Try to create new instance for "+javaType); Object newInstance = javaType.newInstance(); log.debug("Try to invoke setValueMethod "); setValueMethod.invoke(newInstance, new Object[] {obj}); isAssignable = true; obj = newInstance; } catch (Exception e) { e.printStackTrace(); } } Erik View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3983373#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...