BibTexKey Duplicate Check throws NPE

[rvb-033]

JabRef version on

• I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists

Steps to reproduce the behavior:

1. ...
2. ...
3. ...

Log File

Paste an excerpt of your log file here

[rvb-033]

Good afternoon,
I received the appended windows and error log while opening my data base.
I think the issue is linked with an attempt from JabRef to resolve duplicated keys.
Regards,
Hervé
Pb JabRef.txt

[tobiasdiez]

A related but not completely identical problem is reported in #4630.

[Siedlerchr]

We decided to remove this dialog as the feature is already covered in the integrity check and will be covered in the import dialog