In August 2001, the developers made a compiler capable of working with Java.
Most Pizza applications can run in a Java environment, but certain cases will cause problems.
The pattern matching and other functional programming-like features have been further developed in the Scala programming language.
Martin Odersky remarked, "we wanted to integrate the functional and object-oriented parts in a cleaner way than what we were able to achieve before with the Pizza language.
[...] In Pizza we did a clunkier attempt, and in Scala I think we achieved a much smoother integration between the two.