Description of problem:
See subject. That's not a problem by itself, but after this exception file operations like rename in DRL editor (and possibly other editors) stop working correctly.

For example: You can get Modal with NoSuchFileException after creating new DRL, then renaming it, then deleting it.

Version-Release number of selected component (if applicable):
kie-wb 6.3.x snapshot

How reproducible:
Always

Steps to Reproduce:
I isolated the exact steps that reproduce the issue in 100% cases:
1. In Authoring perspective create new project 'original'
2. In Project editor, click copy and enter new name 'mycopy'
3. In project editor, click delete

— mycopy is deleted in UI , but the exception appears in server log.
— following this exception other issues start arising. For example:

4. Create new DRL file
5. In DRL editor click Rename and rename it to some new valid name >>HERE the DRL editor should be reloaded with the new filename, but it itsn't, which causes exception in step 6<<
6. In DRL edito click Delete -> You will get Modal with NoSuchFileException