public void testSetInvalidAliasKeys() throws Exception {
Action action = new SimpleFooAction();
MockActionInvocation mai = new MockActionInvocation();
MockActionProxy map = new MockActionProxy();
ActionConfig cfg = new ActionConfig.Builder("", "", "")
.addParam("hello", "invalid alias expression")
.build();
map.setConfig(cfg);
mai.setProxy(map);
mai.setAction(action);
mai.setInvocationContext(ActionContext.getContext());