Detect private methods

gistfile1.java

for (Method method : clazz.getDeclaredMethods()) {
    if (method != null) {
        try {
            clazz.getMethod(method.getName(), method.getParameterTypes());
        } catch (NoSuchMethodException e) {
            logger.warn("non-public method: " + method.getDeclaringClass().getName() + "." + method.getName() + "()");
        }
    }
}