private void invokeCallback(StateItem item) {
if (!"".equals(item.getCallback())) {
Application application = FacesContext.getCurrentInstance().getApplication();
ExpressionFactory expressionFactory = application.getExpressionFactory();
ELContext el = FacesContext.getCurrentInstance().getELContext();
try {
MethodExpression me =
expressionFactory.createMethodExpression(
el, item.getCallback(), Void.class, new Class[] {});
me.invoke(el, null);
} catch (NullPointerException ex) {
ex.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
}
