Eclipse internal error while initializing Java tooling

Question

I am getting errors from Eclipse Indigo running on Windows 7 Ultimate. For each of the following items:

Android SDK content loader
Building workspace
Initial         


        

Answer 1

In my case, I restarted my eclipse IDE without deleting/editing my workspace or .metadata folder. Error "An internal error occurred during: "Initializing Java Tooling". java.lang.NullPointerException" is gone and Eclipse just working good.