How to clear cache in NetBeans 8.0 OS X

Check menue NetBeans > About menu, it shows path to cache dir. The paths you posted look like for Linux, on Mac it is (at least with recent versions of NetBeans) something like

/Users/{username}/Library/Application Support/Caches/NetBeans/8.0/ 

Go to Netbeans > About and at the bottom you can find the Cache directory. Copy that directory, command + shift + g in the finder, paste the directory and BOOM you're there.