Remote method with no arguments?

[Daniel Leivers]

Hi I’m trying to call a remote method which takes no arguments however I have found no way to do this other than to pass a variable which never gets used (i.e. in the code below I am passing an empty string to the method). I have tried using call.invoke(); but I get a null pointer error. Any ideas?   Service service = new Service();       Call call;           call = (Call) service.createCall();       call.setTargetEndpointAddress(new URL("http://localhost:8080/axis/servlet/AxisServlet")); //Set the target service host and service location,       call.setOperationName(new QName("urn:ImageService", "extClear"));       call.addParameter( "arg1", XMLType.XSD_STRING, ParameterMode.IN);       call.setReturnType( org.apache.axis.encoding.XMLType.XSD_STRING );         call.invoke(new Object[]{ "" });   I’ve had to set up a method on the server side to take the empty string and call the method I actually want to call! i.e.   public void extClear(String s) {       clearImage(); }   public void clearImage() {       //does all the stuff I actually want to do }   Cheers   Dan