When I run Soot to create a call graph of DrJava, I get the aforementioned HotSpot Java error on Windows with Java 1.6.0_18.
On Mac OS X 10.4 with Java 1.5.0_19, I get a “Bus error” (Java exit status 138).
On Red Hat Enterprise Linux 5 with Java 1.6.0_18, I get a “Segmentation fault” (Java exit status 139).
Fun, fun! At least it’s consistently not working. They probably all have the same cause.