Scala.jsPort the Java library
Scala is built on top of Java and its standard library. Therefore, Scala.js needs some parts of the Java library to work. This port of the Java library is itself written in Scala.js.
Currently, only a very small portion is implemented. A very simple, although sometimes tedious, thing that will help Scala.js is to expand this port. It basically boils down to
- Identifying what classes are needed (either because they are used by the Scala library, or because their are generally useful)
- Implement their specification in Scala
- "Native" methods in Java are typically implemented in Scala.js using the interoperability with JavaScript.
For license considerations, this must be a clean room implementation with respect to most existing implementations. However, as far as I understand it, the Apache Harmony implementation, although discontinued since 2011, can be used, since its license is compatible with the BSD-style license of Scala.js.