Compilation warnings

There are several source files in the baseline which have local European encoding.  Combined with the proprietary API warnings, this causes lots of compilation warnings on a correctly configured (UTF-8) workstation, at least with JDK 6.  Takes more work to the find the real warnings among the dross than to fix them.  It'd be good if the authors would fix 'em, but I suspect most are long gone.  I'd fix if I could commit directly.

Anybody know if there is a @SuppressWarnings token to quiet the proprietary API warnings?