topic Re: SAP JCo error in Talend Route Microservice when deployed to Remote Engine in Talend Studio

SAP JCo error in Talend Route Microservice when deployed to Remote Engine

stecava — Thu, 17 Jul 2025 15:44:44 GMT

Hi all,
I'm integrating SAP data using Talend ESB (Route Designer) and exporting the Route as a Microservice. The Route includes a cTalendJob component, and the Job uses SAP JCo (sapjco3.jar) to connect to SAP.

It runs fine inside Talend Studio, but it fails when I deploy the Route as a microservice to a Talend Remote Engine.

This is the error:

java.lang.ExceptionInInitializerError: Illegal JCo archive "job_1_0.jar". It is not allowed to rename or repackage the original archive "sapjco3.jar".

Any help would be really appreciated.

Thanks

Re: SAP JCo error in Talend Route Microservice when deployed to Remote Engine

Denis_Segard — Fri, 18 Jul 2025 15:31:22 GMT

Hello,
Do you know what is the version of the SAP jar file used ?
You can retrieve the version by executing :

java -jar sapjco3.jar -stdout -noManifest

SAP may have changed the controls done in recent versions of jar file (3.1.12 , 3.1.11 , ... )

Kind regards
Denis

Re: SAP JCo error in Talend Route Microservice when deployed to Remote Engine

stecava — Fri, 18 Jul 2025 15:41:09 GMT

Hello Denis,
Thank you for your message.

the version of the SAP JCo JAR file currently in use is an older version: 3.0.19.

When I run the route in the Studio, it works. It depends by the building process?

Best regards,

Stefano