Updates parsing of version to use parseLong

src/main/java/org/entur/netex/support/NetexVersionHelper.java

@@ -1,6 +1,6 @@
 package org.entur.netex.support;
 
-import static java.util.Comparator.comparingInt;
+import static java.util.Comparator.comparingLong;
 
 import java.util.Collection;
 import java.util.Comparator;
@@ -20,10 +20,10 @@ private NetexVersionHelper() {}
 
   /**
    * According to the <b>Norwegian Netex profile</b> the version number must be a
-   * positive increasing integer. A bigger value indicate a later version.
+   * positive increasing number. A bigger value indicate a later version.
    */
-  private static int versionOf(EntityInVersionStructure e) {
-    return Integer.parseInt(e.getVersion());
+  private static long versionOf(EntityInVersionStructure e) {
+    return Long.parseLong(e.getVersion());
   }
 
   /**
@@ -56,6 +56,6 @@ public static <T extends EntityInVersionStructure> T versionOfElementIn(
   private static <
     T extends EntityInVersionStructure
   > Comparator<T> comparingVersion() {
-    return comparingInt(NetexVersionHelper::versionOf);
+    return comparingLong(NetexVersionHelper::versionOf);
   }
 }

src/test/java/org/entur/netex/support/NetexVersionHelperTest.java

@@ -0,0 +1,30 @@
+package org.entur.netex.support;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.rutebanken.netex.model.EntityInVersionStructure;
+
+class NetexVersionHelperTest {
+
+  @Test
+  void testVersionOf() {
+    EntityInVersionStructure entityInVersionStructure1 =
+      new EntityInVersionStructure();
+    entityInVersionStructure1.setVersion("20250101000000");
+    EntityInVersionStructure entityInVersionStructure2 =
+      new EntityInVersionStructure();
+    entityInVersionStructure2.setVersion("20250101000001");
+
+    Collection<EntityInVersionStructure> entitiesInVersionStructure =
+      new ArrayList<>();
+    entitiesInVersionStructure.add(entityInVersionStructure1);
+    entitiesInVersionStructure.add(entityInVersionStructure2);
+
+    Assertions.assertEquals(
+      entityInVersionStructure2,
+      NetexVersionHelper.latestVersionedElementIn(entitiesInVersionStructure)
+    );
+  }
+}