hg: jdk7/tl/jdk: 7031076: Retained ZipFile InputStreams increase heap demand

[xueming.shen at oracle.com]

Changeset: 98688c4be64b
Author:    sherman
Date:      2011-04-18 10:51 -0700
URL:       http://hg.openjdk.java.net/jdk7/tl/jdk/rev/98688c4be64b

7031076: Retained ZipFile InputStreams increase heap demand
Summary: Allow unreferenced ZipFile InputStreams to be finalized, GC'd
Reviewed-by: sherman, dholmes
Contributed-by: neil.richards at ngmr.net

! src/share/classes/java/util/zip/ZipFile.java
+ test/java/util/zip/ZipFile/ClearStaleZipFileInputStreams.java