hg: jdk8/tl/jdk: 7133138: Improve io performance around timezone lookups

[sean . coffey]

Changeset: a589a8dbde79
Author:    coffeys
Date:      2012-02-24 09:10 +0000
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/a589a8dbde79

7133138: Improve io performance around timezone lookups
Reviewed-by: okutsu

! make/tools/src/build/tools/javazic/Mappings.java
! src/share/classes/sun/util/calendar/ZoneInfo.java
! src/share/classes/sun/util/calendar/ZoneInfoFile.java