Eclipse Open declaration in Java project

Question

In an Eclipse SVN project I have a problem; when I tried to open a declaration of one class, I got this error:

Problems opening an editor Reason : projectna         


        

Answer 1

There is a bug in Eclipse (in Luna at least) for a very specific workflow, which might not be the answer to this specific question, but might be helpful for others.

If you perform an import into the src (meaning src folder has focus before performing import) folder from an extracted jar (as source code), and you place breakpoints in the nested *.java files in the nested packages, it won't hit those breakpoints. In order to get things to work, you must keep hitting F3 instead of using "Open Declaration" to get to the *.java file you want to set a breakpoint in, then add the breakpoint by double clicking in the far left margin. Then Run > Debug As > Java Application.