build hadoop

2010/06/03 build hadoop, problem:
ivy-download:
/home/tk/Software/hadoop/hadoop-svn-0.20.2/build.xml:1630: java.net.SocketException: Network is unreachable
mentioned in this post that :

Setting bindv6only to 0 in /etc/sysctl.d/bindv6only.conf on my debian squeeze installation seems to have fixed the problem. Sorry for littering the list.

This actually is a special issue in Debina squeeze/sid version as explained in another post.
So what to do is:
1. Setting bindv6only to 0 in /etc/sysctl.d/bindv6only.conf
2. restart procps: sudo invoke-rc.d procps restart

now we have problem for java version