fixing corese literal generation

Author: MaillPierre

src/main/java/fr/inria/corese/core/next/api/base/model/AbstractIRI.java

@@ -4,12 +4,15 @@
 import fr.inria.corese.core.next.impl.common.util.IRIUtils;
 import fr.inria.corese.core.next.impl.exception.IncorrectFormatException;
 
+import java.io.Serial;
+
 /**
  * Base class for IRI implementations. Includes base functionality for IRI
  * handling.
  */
 public abstract class AbstractIRI implements IRI, Comparable<IRI> {
 
+    @Serial
     private static final long serialVersionUID = -1005683238501772511L;
 
     private final String namespace;
@@ -44,11 +47,6 @@ protected AbstractIRI(String namespace, String localName) {
         this.localName = localName;
     }
 
-    @Override
-    public boolean isIRI() {
-        return true;
-    }
-
     @Override
     public String getNamespace() {
         return this.namespace;
@@ -73,7 +71,7 @@ public int compareTo(IRI o) {
     public boolean equals(Object o) {
         if (this == o)
             return true;
-        if (o == null || getClass() != o.getClass())
+        if (!(o instanceof IRI))
             return false;
         AbstractIRI that = (AbstractIRI) o;
         return this.stringValue().equals(that.stringValue());

src/test/java/fr/inria/corese/core/next/impl/temp/CoreseAdaptedValueFactoryTest.java

@@ -1,12 +1,8 @@
 package fr.inria.corese.core.next.impl.temp;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertNull;
-import static org.junit.jupiter.api.Assertions.assertTrue;
-
 import java.time.Duration;
 
+import fr.inria.corese.core.next.impl.temp.literal.CoreseDate;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
@@ -19,6 +15,8 @@
 import fr.inria.corese.core.next.impl.temp.literal.CoreseLanguageTaggedStringLiteral;
 import fr.inria.corese.core.next.impl.temp.literal.CoreseTyped;
 
+import static org.junit.jupiter.api.Assertions.*;
+
 public class CoreseAdaptedValueFactoryTest extends ValueFactoryTest {
 
     private String stringTestValue;
@@ -135,4 +133,16 @@ public void testCreateFOAFURI() {
         assertNotNull(foaf);
         assertEquals("http://xmlns.com/foaf/0.1/", foaf.stringValue());
     }
+
+    @Test
+    public void testDateCreation() {
+        IRI xsdDate = valueFactory.createIRI("http://www.w3.org/2001/XMLSchema#date");
+        String literalStringValue = "2025-11-20";
+        Literal date = valueFactory.createLiteral(literalStringValue, xsdDate);
+
+        assertNotNull(date);
+        assertEquals(fr.inria.corese.core.next.impl.common.vocabulary.XSD.xsdDate.getIRI().stringValue(), date.getDatatype().stringValue());
+        assertEquals(literalStringValue, date.getLabel());
+        assertInstanceOf(fr.inria.corese.core.sparql.datatype.CoreseDate.class, ((CoreseNodeAdapter) date).getCoreseNode());
+    }
 }