Looking for reviewer and sponsor for 4926314

[Philippe Marschall]

Hello

I am looking for reviewers and a sponsor for JDK-4926314: Optimize
Reader.read(CharBuffer) [1]. The PR [2] went through quite some changes
and is now back to few changes to reduce the impact and the risk.

  [1] https://bugs.openjdk.java.net/browse/JDK-4926314
  [2] https://github.com/openjdk/jdk/pull/1915

Cheers
Philippe