Since I upgraded my Scala plug-in to 0.2.25446, I get an exception alert every time I type the <ENTER> key! Pasting a single newline (and all other editing operations, as far as I can tell) do not elicit this exception.
There are a half-dozen exception reports from me this morning (I was and am very annoyed by this).
Scala plug-in: 0.2.25446
IDEA: 8.1.3 #9886
Java: Sun 1.6.0_13
OS: Linux 2.6.27