Hi, for the latin1 block of CharacterData we can improve the digit(int, int) implementation by providing an optimized lookup table. This improves microbenchmarks exercising Integer.parseInt, Long.parseLong and UUID.fromString etc by around 50%for typical inputs.
Webrev: http://cr.openjdk.java.net/~redestad/8196331/open.00/ Bug: https://bugs.openjdk.java.net/browse/JDK-8196331 The lookup array is pre-calculated to minimize startup impact (adds 1,027 bytecodes executed during initialization) /Claes
