The Scala 2.8.1 compiler doesn't create correctly the generics signature in some cases
Eclipse 3.6 is very strict about the signatures and it's autocompletion feature throws an exception when you work on a java project using scala code:
The issue is being fixed in both projects, but in the meantime I needed to work in eclipse with the akka library, and this issue is annoying.
I wrote a small tool which tries to fix the scala classes. Currently I tested it only on scala-library.jar, which contained the "orElse" method whose signature affected my setup. I don't know if it fixes all the problems, but I tried it on my project and eclipse doesn't complain.
For now I only tried to put that jar in the eclipse IDE classpath, while keeping the original scala-library.jar in the executable classpath.
You can get the code at: