Connection already unwrapped !?

User 8a7878ec6d

08-09-2015 05:46:01


I have seen this error message a couple of times lately, both in local Derby and mySQL-based databases, when trying to edit and then save a structure.

IJC 15.8.24



ChemAxon 206bfdcce5

08-09-2015 05:55:23

Dear Evert,

thank you for reporting this problem, we are already aware of it and we are working on the fix. In our hands, it appears when we try to modify records quickly one after another.

Please accept my apology for any inconvenience.


Best regards,


User 81fa445828

16-09-2015 04:12:29

Hi, I am having same problem of "connection is unwrapped". Did you guys find any fix?




ChemAxon 26d92e5dcd

16-09-2015 07:18:55

Dear Dharam,

the fix is still in progress. We will notify the users via release notes and also into this forum thread, once the fix is ready.

Sorry for the inconvenience


ChemAxon 206bfdcce5

15-10-2015 12:23:39

Dear IJC users,

the fix for the "connection was already unwrapped" issue will be implemented in the upcoming version of IJC, the complete release notes are available here.

Best regards,