Carsten Ziegeler created SLING-2500:
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Summary: NPE in SortingServiceTracker#getSortedServices
Key: SLING-2500
URL: https://issues.apache.org/jira/browse/SLING-2500
Project: Sling
Issue Type: Bug
Components: Installer
Affects Versions: Installer Core 3.3.6
Reporter: Carsten Ziegeler
Assignee: Carsten Ziegeler
Fix For: Installer Core 3.3.8
If the sorting service tracker is called by different threads, this can lead to
a NPE in getSortedServices() or any
downstream clients.
The method first checks whether this.sortedServiceCache is null, if not (or if
it is outdated), it is created
However if duing method execution a new service is added (or removed),
this.sortedServiceCache gets
set null, which may result in NPEs
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