MockControl control = MockControl.createControl(ServletResponseAware.class);
ServletResponseAware mock = (ServletResponseAware) control.getMock();
MockHttpServletResponse res = new MockHttpServletResponse();
MockActionInvocation mai = createActionInvocation(mock);
mai.getInvocationContext().put(StrutsStatics.HTTP_RESPONSE, res);
mock.setServletResponse((HttpServletResponse) res);
control.setVoidCallable();
control.replay();