hg: jdk9/sandbox/jdk: 8079841: Buffer underflow with empty zip entry names

[chris.hegarty at oracle.com]

Changeset: 78825cbc6340
Author:    jmanson
Date:      2015-05-12 14:39 -0700
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/78825cbc6340

8079841: Buffer underflow with empty zip entry names
Summary: check for zero-length entry name before accessing "last" byte
Reviewed-by: sherman, martin

! src/java.base/share/native/libzip/zip_util.c