How to programmatically find list of classes that have inherited a particular class in Java

I have a class called MyClass. Is it possible to programmatically find a list of classes that have inherited MyClass? I know we can use reflection to discover all the superclasses of a given class, but can we find the subclasses?

Is it even theoretically possible to do so (as I haven't heard of a class being aware of when it is be开发者_如何学运维ing extended) ?

You might want to look at the reflections library

Using Reflections you can query your metadata such as:

• get all subtypes of some type
• get all types/methods/fields annotated with some annotation, w/o annotation parameters matching
• get all resources matching matching a regular expression