Please take a look at https://bugs.eclipse.org/bugs/show_bug.cgi?id=136524
This is a regression exposed by the
project refactoring actions which try to clean up the components which
reference a deleted project. The key issue is in doing so, all other
references on the enclosing project are made invalid.
Detailed explanation is in the defect.
The fix is straightforward and tested.
Software Engineer, IBM Rational
"I know this lady way down in my country.
She is so pretty that my eyes throw disguises at me.
Now we will sit and we'll wonder about our future,
But now I'm thinking that today sounds fine to me." - Of A Revolution