The current HexFormat defines an Enum to represent LowerCase and UpperCase
class HexFormat {
private enum Case {
LOWERCASE,
UPPERCASE
}
}
This will cause the JVM to load one more class when it starts, which can be
seen as follows
public class Startup {
public static void main(String[] args) {}
}
java -verbose:class Startup
[0.094s][info][class,load] java.util.HexFormat$Case source:
/Users/.../jdk/modules/java.base
There are only two cases here, which can be represented by boolean, which is
clearer and can improve the startup speed a little bit.
-------------
Commit messages:
- enum replaced by boolean, Reduce the number of classes loaded by startup
Changes: https://git.openjdk.org/jdk/pull/20060/files
Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20060&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8335802
Stats: 24 lines in 1 file changed: 0 ins; 6 del; 18 mod
Patch: https://git.openjdk.org/jdk/pull/20060.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/20060/head:pull/20060
PR: https://git.openjdk.org/jdk/pull/20060
