It looks like its just generating a unique random seed for each HashMap. It seems like that could be made thread-local.
On Dec 27, 2012, at 2:16 PM, Zhong Yu <zhong.j...@gmail.com> wrote: > Reported by the SO question > > http://stackoverflow.com/questions/14010906 > > the HashMap constructor contains a CAS, which is kind of surprising. > Could it be removed? > > transient final int hashSeed = > sun.misc.Hashing.randomHashSeed(this); // CAS > > Zhong Yu
