@Edouard_JH 

Issue is with both interactive and ephemeral cluster, Issue is with previous runtime version it used to work but started failing from runtime version 14.3

We install some default libs on cluster creation and also pass all libraries required by job during submission. So jackson is installed during cluster creation and in job libraries, 

since libs are from dbfs and point to same jar shouldn't be issue right?

Is there any configuration added to check duplicate jar from full path instead of just name.

Thanks