There's a convention in hotspot to have a print function for most (many?) of the classes, like:

 295 void print() const { print_on(tty); }
 296 void print_on(outputStream* st) const;

Unfortunately, this makes calling print in gdb return:

(gdb) print mirror._o->klass()->print()
Cannot evaluate function -- may be inlined

There is no performance reason for print() to be inlined. With Unified Logging, most printing should go to a logStream anyway.