TraceNewOopMapGeneration prints output to tty. It can be called during StackWaterMark processing so the tty lock is out of order with the stackwatermark lock. It can also print MethodData and that lock is also out of order with the stackwatermark lock.

This code hadn't been converted to UL in the past because nobody was looking at the output. In reading the code, it would be nice to see the output.