Tom Tromey writes: > A couple of papers on speeding up 'instanceof', via Lambda the > Ultimate: > > http://lambda-the-ultimate.org/node/view/1218 > http://people.csail.mit.edu/jrb/pve/index.htm > > At one point I thought we had a plan for implementing this. I forget > what happened to it though. Worth doing. _Jv_CheckCast and _Jv_IsAssignableFrom total 3.8% of total runtime at http://intranet.corp.redhat.com/ic/intranet/opreport Andrew.