Java: How to check if an object is an instance of a non-static inner class, regardless of the outer object?

Question

If I have an inner class e.g.

class Outer{
    class Inner{}
}

Is there any way to check if an arbitrary Object is an instance of

Answer 1

I was googling for finding out better answers, to find out that there are none out there.

Here is what I have which works pretty well:

    public static boolean isStatic(Class klass) {
            return Modifier.isStatic(klass.getModifiers());
    }

    /**
     * Non static inner class
     */
    public static boolean isInnerclass(Class klass) {
            return klass.getDeclaringClass() != null && !isStatic(klass);
    }

Will return true for local inner classes. isMemberClass and others do not work for this purpose.