hg: jdk9/dev/jdk: 8054221: StringJoiner imlementation optimization

[ivan.gerasimov at oracle.com]

Changeset: 6d8e4fbae5a2
Author:    igerasim
Date:      2014-08-07 15:07 +0400
URL:       http://hg.openjdk.java.net/jdk9/dev/jdk/rev/6d8e4fbae5a2

8054221: StringJoiner imlementation optimization
Reviewed-by: martin

! src/share/classes/java/util/StringJoiner.java
! test/java/util/StringJoiner/MergeTest.java
! test/java/util/StringJoiner/StringJoinerTest.java