This seemed to be a common problem, but did not find direct solution neither in docs, nor in FAQ. I have set up tigase test server for testing, created a number of test accounts and now want to clean them up without having to do this on client site with login/delete operation (actually, I can't delete one of my accounts from client because of the wrong password or probably by another problem). Is there a simple way to do this on server site by administrator? Also, I am using simple derby db installation and for now would prefer not to migrate to mysql. I suppose Drupal integration is intended to solve such kind of problems, but it looks like it requires migrating to mysql and it also looks like a complex solution for such simple task.