Some changes were made to the Chinese (zh) locale for CompactDecimalFormat. The number 9000000000000 for CompactDecimalFormat went from 9兆 to 9万亿. This contradicts the current RBNF implementation, which returns 九兆 (九 is 9), and it contradicts the other Chinese variants. I recommend reverting the change to 13-digits-short-other, 14-digits-short-other and 15-digits-short-other in zh.
zh_Hant, yue, yue_Hans and RBNF of the same languages use 兆 for this number magnitude.