openjdk-7-jdk issue on multiple threads

Version:
Description: Ubuntu Vivid Vervet (development branch)
Release: 15.04

Package info:
openjdk-7-jdk:
  Installed: 7u75-2.5.4-3
  Candidate: 7u75-2.5.4-3
  Version table:
 *** 7u75-2.5.4-3 0
        500 http://us.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
        100 /var/lib/dpkg/status

Error Log: http://pastebin.com/HPpc1xYe

Every time I try to build CM 12.0 lately I'm getting these errors. I did recently upgrade to a 5690X and when I did took the chance to reinstall Ubuntu. Also cleared ccache and CM12 repository.

When I use CM's brunch tool or make with -j option, I get an error log like in the Pastebin link. If I make with no -j option, it builds successfully. I'm at my wit's end on this and don't know what else to do. Everything else builds at -j16 without a hitch so I'm starting to wonder if this is a bug in openjdk-7-jdk. I also ran memtest and all 16GB passed. Don't think it's a voltage issue, other CPU stress tests pass fine.

Any advice that can be provided would be greatly appreciated. Thanks!