How do I identify immutable objects in Java

Question

In my code, I am creating a collection of objects which will be accessed by various threads in a fashion that is only safe if the objects are immutable. When an attempt is m

Answer 1

At my company we've defined an Attribute called @Immutable. If you choose to attach that to a class, it means you promise you're immutable.

It works for documentation, and in your case it would work as a filter.

Of course you're still depending on the author keeping his word about being immutable, but since the author explicitly added the annotation it's a reasonable assumption.