Felix Meschberger created FELIX-3754:
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Summary: Services registered from within the activate method may
not be bound
Key: FELIX-3754
URL: https://issues.apache.org/jira/browse/FELIX-3754
Project: Felix
Issue Type: Bug
Components: Declarative Services (SCR)
Affects Versions: scr-1.6.2
Reporter: Felix Meschberger
Fix For: scr-1.8.0
The Sling POST Servlet registers a number of services in the activate method
and expects these services to be bound to itself. With SCR 1.6.0 this worked
because each component instance had its dependency managers configured with its
component instance.
As of SCR 1.6.2 the DependencyManager instances are shared amongst all
component instances and thus don't have a reference to the component instances.
Instead actually bind, unbind and update services the DependencyManager
instances call the respective component manager which then dispatches to the
component instances.
At the point in time when the activate method is called (in the
ImmediateComponentManager.createComponentInstance method) the actual component
instance is not "registered" with the component manager yet and thus a bind
call while the activate method is called cannot be satisfied.
To fix this, the component instance must be "registered" with the component
manager before calling the activate method. If the activate method fails, the
instance must of course be "unregistered" again.
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