[7u-dev] Request for approval for 8002344: Krb5LoginModule config class does not return proper KDC list from DNS

[Weijun Wang]

Hi All

This is a request to backport a jdk8 fix into jdk7u-dev.

8002344: Krb5LoginModule config class does not return proper KDC list 
from DNS

    http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8002344

When there are multiple DNS SRV entries for Kerberos 5 KDC settings, the 
old codes only reads a random one. Now we read all.

The fix is already included in jdk8 as:

    http://hg.openjdk.java.net/jdk8/tl/jdk/rev/f740a9ac6eb6
    Reviewed-by: weijun
    Contributed-by: Severin Gehwolf <sgehwolf at redhat.com>, Wang Weijun 
<weijun.wang at oracle.com>

The patch for jdk7u-dev is identical to the one in jdk8.

The fix is low-risk, and isolated. new regression test added. Existing 
tests also run fine.

Thanks
Weijun