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

[Andy Seaborne (Jira)]

Andy Seaborne created JENA-1866:
-----------------------------------

             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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