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https://issues.apache.org/jira/browse/JENA-323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephen Allen resolved JENA-323.
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Resolution: Fixed
Assignee: Stephen Allen
Fix applied in revision 1387351.
Thanks!
> ModelCom: difference NullPointerExeption swallows the original cause
> --------------------------------------------------------------------
>
> Key: JENA-323
> URL: https://issues.apache.org/jira/browse/JENA-323
> Project: Apache Jena
> Issue Type: Bug
> Components: Jena
> Affects Versions: Jena 2.7.3
> Reporter: Martin W.
> Assignee: Stephen Allen
> Priority: Minor
>
> I'm getting NullPointerException at
> com.hp.hpl.jena.rdf.model.impl.ModelCom.difference(ModelCom.java:1440)
> Currently the source code reads as follows:
> @Override
> public Model difference(Model model) {
> Model resultModel = createWorkModel();
> StmtIterator iter = null;
> Statement stmt;
> try {
> iter = listStatements();
> while (iter.hasNext()) {
> stmt = iter.nextStatement();
> if (! model.contains(stmt)) {
> resultModel.add(stmt);
> }
> }
> return resultModel;
> } finally {
> iter.close();
> }
> }
> Probably, the finally section should be:
> } finally {
> if (iter != null) {
> iter.close();
> }
> }
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