On 07/11/2013 00:19, Robert Stupp wrote:
Hi,
the current implementation of java.util.UUID.fromName() and java.util.UUID.toString()
unnecessarily produce a lot of temporary objects. Especially the fromName() method
creates some instances of java.lang.Long and indirectly via "name.split()" many
Strings, an ArrayList, etc. UUID.toString() creates at least 10 String objects plus the
implicitly created char[] instances.
Here's a hg diff which reduces the temporary object count while still providing
the same functionality.
-
Robert
I see others have replied to point out the existing bug tracking this
and also the patches that have been proposed in this area.
One other thing to mention is the "How to contribute" page [1] in case
you haven't read it.
-Alan
[1] http://openjdk.java.net/contribute/
