hg: jdk9/hs-rt/hotspot: 8147500: The HashtableTextDump::get_num() should check for integer overflow

[jiangli.zhou at oracle.com]

Changeset: d1e392bce38a
Author:    jiangli
Date:      2016-01-27 22:39 -0500
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/d1e392bce38a

8147500: The HashtableTextDump::get_num() should check for integer overflow
Summary: Add check for integer overflow in HashtableTextDump::get_num()
Reviewed-by: dholmes, iklam

! src/share/vm/classfile/compactHashtable.cpp
! src/share/vm/classfile/compactHashtable.hpp