hg: jdk7/tl/jdk: 6496274: jar seems to use more CPU than it should

[xueming . shen]

Changeset: 57dc40ece164
Author:    sherman
Date:      2008-12-17 22:50 -0800
URL:       http://hg.openjdk.java.net/jdk7/tl/jdk/rev/57dc40ece164

6496274: jar seems to use more CPU than it should
Summary: boost jar creating performance especially for the large jar file
Reviewed-by: martin

! src/share/classes/sun/tools/jar/Main.java