[jira] [Created] (JENA-362) model.listStatements(s,p,o,lang) has problems with null values in the third and forth argument

[JIRA]

François-Paul Servant created JENA-362:
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             Summary: model.listStatements(s,p,o,lang) has problems with null 
values in the third and forth argument
                 Key: JENA-362
                 URL: https://issues.apache.org/jira/browse/JENA-362
             Project: Apache Jena
          Issue Type: Bug
          Components: Jena
    Affects Versions: Jena 2.7.4
            Reporter: François-Paul Servant
            Priority: Minor


1) model.listStatements(s,p,null,lang) doesn't filter on lang param
2) model.listStatements(s,p,o,null) only returns statements whose object has 
lang "" (when o != null)

TEST 1
import org.junit.Test;
import com.hp.hpl.jena.rdf.model.*;
public class LstStmt1 {
        @Test
        public final void test() {
                Model m = ModelFactory.createDefaultModel();
                Resource s = m.createResource("http://www.a.com/s";);
                Property p = m.createProperty("http://www.a.com/p";);

                m.add(s,p,m.createResource("http://www.a.com/o";));
                m.add(s,p,"texte","fr");
                m.add(s,p,"text","en");
                
                StmtIterator it = m.listStatements(s, p, null,"en");
                // list all the statements - not what one can expect
                for (;it.hasNext();) {
                        System.out.println(it.next());
                }
        }
}

TEST2

public class LstStmt2 {
        @Test
        public final void test() {
                Model m = ModelFactory.createDefaultModel();
                Resource s = m.createResource("http://www.a.com/s";);
                Property p = m.createProperty("http://www.a.com/p";);

                m.add(s,p,"text","en");
                m.add(s,p,"text");
                
                StmtIterator it = m.listStatements(s, p,"text",null);
                // should list the 2 statements, but doesn't: only the one 
without lang
                for (;it.hasNext();) {
                        System.out.println(it.next());
                }
        }
}


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