hg: jdk7/tl/jdk: 4465490: Suspicious about double-check locking idiom being used in the code

[xueming.shen at oracle.com]

Changeset: 91bcd8fc04f2
Author:    sherman
Date:      2010-05-16 21:22 -0700
URL:       http://hg.openjdk.java.net/jdk7/tl/jdk/rev/91bcd8fc04f2

4465490: Suspicious about double-check locking idiom being used in the code
Summary: to use volatile for the double-checked object
Reviewed-by: weijun

! src/share/classes/java/util/jar/JarVerifier.java