.(1) One of the reasons for changing the default is that Jikes RVM is more functional in this mode and we believe that RedHat 7.3 or better is fairly wide spread.  Overall, we think its better to default to a version of Jikes RVM that can run eclipse successfully on what we think is the majority of the platforms.

(2) Yes. jBuildClassPathJar.... this should be fixed...I've fixed this at least once in the past and I guess it crept back in again.

(3) interesting...I don't think we intentionally broke 1.3 builds...what is the symptom?