The code needs to be updated to compile on the latest Scala versions (2.10.x)

[jbx1]

The code uses some deprecated classes and also methods which do not exist anymore.

scala.collection.immutable.RedBlack is deprecated

Methods insert, delete, byStart, byEnd, elements for RedBlack.NonEmpty do not exist any more.

Range.first does not exist any more.

[dcsobral]

Actually, I think this interval tree has never worked -- not related to library compatibility, just that the logic was plain broken. It was an experiment.

[jbx1]

Yeah I thought so... wasn't sure whether I try to fix it or not... seems that I have to write my own then, because I can't seem to find one anywhere.