Hello dtitov,

Thank you for reaching out to us with this.
Could you please share your process model xml so we could understand better the scenario. And could you please specify the Spring boot start version and the Camunda version that you are using.
Would it be possible to share a minimal project that reproduces the issue?

Best,
Yana

https://github.com/miiit/camunda-spring-boot-example/blob/main/src/test/java/dt/test/TestApplicationTest.java

Hello @yana.vasileva ,  

The test project is on github. The link is attached.

The versions are:

Spring-Boot: (v2.2.4.RELEASE)
Camunda BPM: (v7.12.0)
Camunda BPM Spring Boot Starter: (v3.4.1)

Best regards,

Dmitrii

Hello Dmitrii,

Thank you for sharing the example, it was convenient to reproduce and debug the issue, highly appreciated.

I can confirm the problem:
During the parsing of the process the execution listeners are added once during parsing of the boundary event and a second time during the parse of the event definition. Adding listeners for the event definitions should not be performed.

Are you interested in providing a pull request to fix the behavior? We will provide you help and guidance if necessary.

Best regards,
Yana

Hello Yana,

Yes, I'm intrested.
Should I create pull request for master branch only for camunda-bpm-spring-boot-starter?

Best regards,
Dmitrii

Hi dtitov,

That's great.
Yes, please create the pull request only for master branch here: https://github.com/camunda/camunda-bpm-platform/tree/master/spring-boot-starter
(We merged the spring boot repository to the platform.)
Let me know in case of any questions.

Best regards,
Yana

Hello Yana,

Here is the PR: https://github.com/camunda/camunda-bpm-platform/pull/1224

Best regards,
Dmitrii

P.S. Happy New Year!

I am closing this ticket in benefit of CAM-12844.

dtitov Thank you once again for the contribution. The process of the PR could be tracked in github where I provided a couple of review hints and the release related information will keep track in CAM-12844.