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Posted to pr@jena.apache.org by GitBox <gi...@apache.org> on 2020/03/22 14:39:33 UTC
[GitHub] [jena] Aklakan edited a comment on issue #712: JENA-1862:
Query.clone is slow
Aklakan edited a comment on issue #712: JENA-1862: Query.clone is slow
URL: https://github.com/apache/jena/pull/712#issuecomment-602217879
Oh, I haven't noticed the prefix leaking in testing this code, but I have seen it happen before. IIRC it may be related to a PrefixMapping2 (the one with local / global maps) getting [copied into a PrefixMappingImpl](https://github.com/apache/jena/blob/9d0689680f17a71167fd9553cc6146e8e9965ca6/jena-arq/src/main/java/org/apache/jena/sparql/syntax/syntaxtransform/QueryTransformOps.java#L180). Maybe PrefixMapping needs a clone method too?
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