4.5.4 find usages

find usages in Project and Libraries does not work.

-> navigate to a class from a library (which is then shown as .class in the editor)
invoke "find usages" on it, and choose "Project and Libraries".

-> I have the 10000 classes jar in the classpath and want to find out the usages of a certain class within that library.

-> no usages. bloody lie ;)

M.