Netbeans 8.0 for Java project is stuck on Refreshing indices (1% complete) for hours.

Restart IDE make no difference. Environment is ...

```
 Netbeans 8.0  
 OSX 10.9.2 
 JDK 1.8.0_05

```

All was working good up to now.

How to get the IDE back to a good state ?

I did read <http://forums.netbeans.org/topic60391.html> but I think it is discussing a different project type that I use