Method[] methods = this.getClass().getMethods();
for (Method method : methods) {
    MyAnnotation annotation = method.getAnnotation(MyAnnotation.class);
    if (annotation != null) {
        Object myAnnotationAttribute = annotation.value();
        // do whatever you want here
        try {
            method.invoke(this, methodParameters);
        } catch (IllegalAccessException|InvocationTargetException e) {
            e.printStackTrace();
        }
    }
}