Github user ajs6f commented on a diff in the pull request: https://github.com/apache/jena/pull/151#discussion_r82505751 --- Diff: jena-arq/src/main/java/org/apache/jena/sparql/engine/http/QueryEngineHTTP.java --- @@ -135,8 +135,7 @@ private QueryEngineHTTP(String serviceURI, Query query, String queryString, Http this.query = query; this.queryString = queryString; this.service = serviceURI; - // Copy the global context to freeze it. - this.context = new Context(ARQ.getContext()); + this.context = ARQ.getContext(); --- End diff -- Okay, so the principal is that an instance `QueryEngineHTTP` should not change its behavior between construction and execution, even if the global context changes around it? Cool. I will change my PR to leave the tests alone and leave the context "frozen".
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