java hung on futex_wait

It has been really painful. I was using netbeans for php coding and after sometime, java started hanging at futex_wait

The following solution from http://www.ctroller.com/contentRoller/view/25877/solution_futexwait_hangs_java_on_linux_ubuntu_in_vmware_or_virtual_box.html seems to have solved it
execute the following on a shell prompt (as root/sudo)

rm /dev/random
mknod -m 644 /dev/random c 1 9

This might be bcoz, /dev/random (c , 1, 8) might block if it runs out of values. (c,1,9) is linked to urandom. we are just changing the /dev/random also to point to the same char driver

Update:
I thought this fix worked, but the problem has come back again. So, kind of stuck.. still no fix