hg: jdk8/tl/jdk: 8010849: (str) Optimize StringBuilder.append(null)

[martinrb at google.com]

Changeset: 3db793b080d8
Author:    martin
Date:      2013-04-08 16:37 -0700
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/3db793b080d8

8010849: (str) Optimize StringBuilder.append(null)
Summary: Append 4 chars instead of the string "null"
Reviewed-by: mduigou, forax, jgish

! src/share/classes/java/lang/AbstractStringBuilder.java