Amazing test results. So glad to hear about the success using an alternate start-up drive.

MacOSX's Java 6 can be difficult to totally uninstall. If there are any other apps or utilities that utilize it or perhaps have indirect unix links to it.

When I earlier hinted at removing Java cache /& settings files, I'm now wondering if this might actually be worthy to try. There's something on your system related to java that's obviously an issue.

And perhaps Java 7 is the go for you. But you now know how to force WS to use it.