gcj computes the type of the `itable' field of Class differently from how the runtime declares this type. This is confusing to the maintainer and potentially fragile (depending on the vagaries of struct layout). See http://gcc.gnu.org/ml/java-patches/2004-q4/msg00286.html
-- Summary: gcj has wrong type for itable Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: java AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: tromey at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18148