On Tue, 11 Feb 2025 20:56:39 GMT, Coleen Phillimore <cole...@openjdk.org> wrote:
> Class.isInterface() can check modifier flags, Class.isArray() can check > whether component mirror is non-null and Class.isPrimitive() needs a new > final transient boolean in java.lang.Class that the JVM code initializes. > Tested with tier1-4 and performance tests. I had a look at Wrapper.forPrimitiveType() and it's not an intrinsic so I don't really know how hot it is. It's a comparison, vs getting a field out of Class<?>. Not sure how to measure it. So I can't address it in this change. ------------- PR Comment: https://git.openjdk.org/jdk/pull/23572#issuecomment-2659396480