I have the grails.jar in my project along with the attached source. I can view all source in that jar expect for a single file. The file exists on disk and opens fine in eclipse. Every other file in the same package can be opened. I can removed the global library, added it back, removed and added the source directories, etc, etc. I get no exceptions when opening the class, but I see only the decompilation.
What could be causing such strange behavior? How can I debug this?