Test failing in Rest when bulk publishing in multiple channels

[qsdigor]

I am getting errors in rest bulk publish multiple channels tests where messageId is null.
It seems java has an old way of publishing batch messages which will need to be a breaking change in v2.0
This issue is linked to ably/features#81

┆Issue is synchronized with this Jira Task by Unito

[sync-by-unito]

➤ Automation for Jira commented:

The link to the corresponding Jira issue is https://ably.atlassian.net/browse/SDK-2864