Use LinkedHashSet instead of HashSet, and rename class to Vocabularies

Signed-off-by:Bart Hanssens <bart.hanssens@fedict.be>

Author: barthanssens

…pse/rdf4j/model/util/VocabularyUtil.java …lipse/rdf4j/model/util/Vocabularies.javacore/model/src/main/java/org/eclipse/rdf4j/model/util/VocabularyUtil.java renamed to core/model/src/main/java/org/eclipse/rdf4j/model/util/Vocabularies.java core/model/src/main/java/org/eclipse/rdf4j/model/util/VocabularyUtil.java renamed to core/model/src/main/java/org/eclipse/rdf4j/model/util/Vocabularies.java

@@ -8,7 +8,7 @@
 package org.eclipse.rdf4j.model.util;
 
 import java.lang.reflect.Field;
-import java.util.HashSet;
+import java.util.LinkedHashSet;
 import java.util.Set;
 
 import org.eclipse.rdf4j.model.IRI;
@@ -18,15 +18,15 @@
  * 
  * @author Bart Hanssens
  */
-public class VocabularyUtil {
+public class Vocabularies {
 	/**
 	 * Get all the {@link IRI IRIs} of the classes and properties of a vocabulary.
 	 *
 	 * @param vocabulary RDF vocabulary
 	 * @return set of IRIs
 	 */
 	public static Set<IRI> getAllIRIs(Class vocabulary) {
-		Set<IRI> iris = new HashSet<>();
+		Set<IRI> iris = new LinkedHashSet<>();
 
 		for (Field f : vocabulary.getFields()) {
 			if (f.getType().equals(IRI.class)) {

…rdf4j/model/util/VocabularyUtilTest.java …e/rdf4j/model/util/VocabulariesTest.javacore/model/src/test/java/org/eclipse/rdf4j/model/util/VocabularyUtilTest.java renamed to core/model/src/test/java/org/eclipse/rdf4j/model/util/VocabulariesTest.java core/model/src/test/java/org/eclipse/rdf4j/model/util/VocabularyUtilTest.java renamed to core/model/src/test/java/org/eclipse/rdf4j/model/util/VocabulariesTest.java

@@ -20,7 +20,7 @@
 /**
  * @author Bart Hanssens
  */
-public class VocabularyUtilTest {
+public class VocabulariesTest {
 
 	@Test
 	public void testVocabAllIRI() throws Exception {
@@ -29,7 +29,7 @@ public void testVocabAllIRI() throws Exception {
 			DC.FORMAT, DC.IDENTIFIER, DC.LANGUAGE, DC.PUBLISHER, DC.RELATION,
 			DC.RIGHTS, DC.SOURCE, DC.SUBJECT, DC.TITLE, DC.TYPE));
 
-		Set<IRI> allIRIs = VocabularyUtil.getAllIRIs(DC.class);
+		Set<IRI> allIRIs = Vocabularies.getAllIRIs(DC.class);
 
 		assertEquals(dcIRIs, allIRIs);
 	}