I am not a developer Well, as there wasn’t anyone else i stepped in to help move this project on and i occasionally mess with the code. But we don’t have real java developers here working on Spark (except for a few months, when Guus helped move Spark to Smack 4).
I’m not sure i understand what SASL anonymous is, but why not. If it is useful for somebody. As Daryl said, you can submit a PR on Github (or a patch file here). I have filed a JIRA ticket for this [SPARK-1852] Add anonymous SASL login support - IgniteRealtime JIRA
Btw, doesn’t Smack have to have such support also? Though i’m sure 4.x version already has this.