Java - loading annotated classes

Question

I know there are incredible set of tools for loading plugin classes in java, but today an idea came to my mind.

What if I have a bunch of annotated and un-annotated

Answer 1

First answer: Take a look at this project.

Reflections reflections = new Reflections("org.home.junk");
Set> annotated = reflections.getTypesAnnotatedWith(javax.persistence.Entity.class);

It returns all the classes from org.home.junk annotated with javax.persistence.Entity annotation.

Second Answer: To create new instance of above classes you can do this

for (Class clazz : annotated) {
    final Object newInstance = clazz.newInstance();
}

Hope this answers everything.