There is no Branch.java or persistent Branch entity in the onedev/server source. Branches are represented directly as Git refs: Project.getBranchRefs() / getBranchRef() return RefFacade objects wrapping JGit refs.

The contributor shown on the branches page is derived from the branch tip commit’s author and committer (RevCommit.getAuthorIdent() / getCommitterIdent()), so it identifies the latest commit, not the branch creator or owner.

For pushes, GitPostReceiveCallback attaches the authenticated OneDev user to a transient RefUpdated event. Listeners can use that user (for example, the branch-update trigger’s “pushed by” condition), but it is not persisted as an author property of the branch. GitService.createBranch() also emits RefUpdated without a user.

So current author tracking is commit-level, with pusher identity available during ref-update processing; OneDev does not persist a branch creator/author or last-pusher record. Adding that concept would require new persistent metadata rather than extending an existing Branch entity.