On Fri, 6 Oct 2023 20:55:40 GMT, 温绍锦 <d...@openjdk.org> wrote: > @cl4es and @Glavo have already made some very good optimizations to > URLEncoder, but we can continue to improve. > > The current URLEncoder's Predicate for DONT_NEED_ENCODING is based on BitSet, > which is actually a table lookup. The actual performance may not be as good > as microbench. > > The character value range of DONT_NEED_ENCODING is between [45-122]. We can > construct two long type constants to do the work of BitSet. This can improve > performance by about 7% to 30%.
I can't find any in the java.base module, but outside of java.base there are a few candidate such as `javax.management.remote.JMXServiceURL` and `com.sun.tools.javac.jvm.PoolReader`. Why? ------------- PR Comment: https://git.openjdk.org/jdk/pull/16082#issuecomment-1752713940
