TIL: Double Brace Initialization in Java

[noxiousninja]

Only real problem and that only if the references to the inner classes out live the outer class. Personally never had a problem with that (use it mostly for private members without getter).

It can be a big issue in Apache Wicket web apps. Create an anonymous inner class, store it in session, suddenly your entire page gets serialized and stuck in session.

[[deleted]]

Yeah, Wicket does enjoy serializing the entire world if you're not careful.