CompositeHelper.handle fails when Component has no inbound filters

[jgustie]

The CompositeHelper.handle method reports that a component wasn't properly started if there are no inbound filters, even if the inboundNext is set.

I was able to get into this state by disabling the both component status service and the component log service. This left no enabled component services and therefore no inbound filters were created.

Calling getInboundNext instead of getFirstInboundFilter from handle would fix the issue, however it looks like getInboundNext is synchronized and probably shouldn't be used directly from handle.

[thboileau]

Should we apply the patch on 2.2 branch also?
Reassigned to @jlouvel

[jlouvel]

I think so! Assigned to @thboileau