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Posted to dev@jena.apache.org by "Andy Seaborne (Jira)" <ji...@apache.org> on 2020/03/19 09:36:00 UTC

[jira] [Created] (JENA-1866) SPARQLQueryProcessor: Need volatile to make method thread-safe

Andy Seaborne created JENA-1866:
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             Summary: SPARQLQueryProcessor: Need volatile to make method thread-safe
                 Key: JENA-1866
                 URL: https://issues.apache.org/jira/browse/JENA-1866
             Project: Apache Jena
          Issue Type: Task
          Components: Fuseki
    Affects Versions: Jena 3.14.0
            Reporter: Andy Seaborne
            Assignee: Andy Seaborne
             Fix For: Jena 3.15.0


This ticket tracks https://github.com/apache/jena/pull/709 ("intrigus-lgtm" on GitHub).

There needs to be a "happens before" barrier so that any Set and the objects it contains created by {{generateAcceptedParams()}} is completed and available to other threads.

Making {{acceptedParams_}} volatile achieves this.



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