How do I prevent Eclipse from hanging on startup?

Question

I am using Eclipse 3.3 (\"Europa\"). Periodically, Eclipse takes an inordinately long time (perhaps forever) to start up. The only thing I can see in the Eclipse log is:

Answer 1

This one works for me:

Another, and a bit better workaround which apparently works:

1. Close Eclipse.
2. Temporary move offending project somewhere out of the workspace.
3. Start Eclipse, wait for workspace to load (it should).
4. Close Eclipse again.
5. Move the project back to workspace.

Source: Eclipse hangs while opening workspace after upgrading to GWT 2.0/Google app engine 1.2.8