> > >What's field -> u.addr or *field when the dereference segfaults? Can you get gdb to print that? > 'field' has been optimized away. I am recompiling libgcj with "-g" only. I tried to get info with (gdb) print *((jclass) addr) can't find class named `java::lang::Class', as given by C++ RTTI Should I do something so that gdb gets this info? Daniel