Netbeans Clear Cache to Correct Broken Code Completion

If your Netbeans project is behaving a bit weirdly with regards to code auto completion then this little fix might be for you.

Netbeans maintains a cache folder and it looks like this can get corrupted sometimes and need clearing out.

Close Netbeans down, empty your $HOME/.netbeans/6.9/var/cache/ folder and then restart Netbeans and hopefully that should fix it