How to create attachment in Bitbucket Server by Java API

[Johannes Heger]

In a Bitbucket Server add-on I like to create pull request comments of more than 32kB length. But the length is limited to that.

My idea is to create a text-file and attach it by Java API to that pull request.

There is the class com.atlassian.stash.internal.attach.AttachmentService in bitbucket-service-api-4.14.7.jar, but it seems to be internal only and not reachable at runtime from within my add-on.

Any ideas how to create an attachment? Or in general, how to add that information to a pull request?

Kind regards, Johannes