Fix Eclipse java references database corruption?

Question

How do I make eclipse rebuild the database of classes contained within a project or workspace? This is what it uses to make the \"References\" menu action work, what it uses

Answer 1

First exit Eclipse. Next in your workspace directory, delete the .metadata/.plugins/org.eclipse.jdt.core/ directory. Next time you launch Eclipse, it will rebuild all of its internal indexes. Often cleaning of projects doesn't force all of that metadata to be rebuilt.