Patch [ecj]: Central Parking

[Andrew Haley]

Mohan Embar writes:

 > Would you feel comfortable with this approach? Unlike my other
 > patch, this actually passes all the tests for LockSupportTest on
 > Linux. If you're okay with this, I'll write up a ChangeLog, but I
 > don't want to sink too much time into this if you don't like
 > it. This simply refactors the POSIX stuff. The Win32 support would
 > be a followup patch.

That looks great.

Thanks,
Andrew.