David Jencks created FELIX-4538:
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Summary: [DS] problem with stale references with "triangle" of
static references
Key: FELIX-4538
URL: https://issues.apache.org/jira/browse/FELIX-4538
Project: Felix
Issue Type: Bug
Components: Declarative Services (SCR)
Affects Versions: scr-1.8.2
Reporter: David Jencks
Assignee: David Jencks
Fix For: scr-1.8.2
Lets say you have a service A and DS components B and C, each with a static
reference to A, and that C also has a static reference to B. Suppose B and C
are immediate or there is some other reason C will be recreated immediately.
If everything is running, and you unregister A, a service event goes out
announcing this.
If B gets the event first, it will deactivate and activate immediately. This
causes C to deactivate and reactivate. However C's service tracker for A has
not yet received the notification that A is gone and with current code C will
be created with a stale reference to A. (in a moment C is notified that A is
gone and gets recreated again)
If C gets the event first, there won't be this problem.
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