RFE filed: https://bugs.openjdk.org/browse/JDK-8302877
/Claes 17 feb. 2023 kl. 18:38 skrev Eirik Bjørsnøs <eir...@gmail.com<mailto:eir...@gmail.com>>: Hi, The following PR suggests we can speed up Character.toUpperCase and Character.toLowerCase for latin1 code points by applying 'the oldest ASCII trick in the book': https://github.com/openjdk/jdk/pull/12623 Thanks, Eirik.