Pydev can't open files as "project" files if they are in symlinked folder.
1) F3 opens non-project file on searches (file under real path)
2) Code completion & static error checking don't work in these files.
Probably problem is they are converted to real file path (symlink is opened) and considered non-project files after that.
Create project /prj
Symlink some other project XYZ as /prj/XYZ
Lots of inconsistencies with files under XYZ will happen.