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From "Paolo Antinori (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ARIES-1732) blueprint-cm - race condition
Date Fri, 28 Jul 2017 13:26:00 GMT
Paolo Antinori created ARIES-1732:
-------------------------------------

             Summary: blueprint-cm - race condition
                 Key: ARIES-1732
                 URL: https://issues.apache.org/jira/browse/ARIES-1732
             Project: Aries
          Issue Type: Bug
          Components: Blueprint
            Reporter: Paolo Antinori


There is a possible race condition in `org.apache.aries.blueprint.compendium.cm.CmPropertyPlaceholder`
and `org.apache.aries.blueprint.compendium.cm.ManagedObjectManager`

There are situations where `ConfigAdmin` service might not be available and returns `null`
when queried for the initial `config`.
In other cases instead, `CmPropertyPlaceholder` receives updates from `ConfigAdmin` thread
even before it has completed it's initialization.

The code doesn't discriminate if `config` is `null` or not, and treats any value as valid,
marking `CmPropertyPlaceholder` instance as initialized.

This leads to spotty errors.

The suggested fix, that simply prevents that `update(null)` invocation mark the `CmPropertyPlaceholder`
instance as initialized, addresses the issue.



Code here:
https://github.com/apache/aries/compare/trunk...paoloantinori:ENTESB-7141?expand=1



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