feat: fix null id scenario

Signed-off-by: Otavio Santana <[email protected]>

Author: otaviojava

jnosql-mongodb/src/main/java/org/eclipse/jnosql/databases/mongodb/communication/MongoDBDocumentManager.java

@@ -75,7 +75,12 @@ public CommunicationEntity insert(CommunicationEntity entity) {
         Objects.requireNonNull(entity, "entity is required");
         String collectionName = entity.name();
         MongoCollection<Document> collection = mongoDatabase.getCollection(collectionName);
-        Document document = getDocument(entity);
+        var document = getDocument(entity);
+        if (document.get(ID_FIELD) == null) {
+            document.remove(ID_FIELD);
+            entity.remove(ID_FIELD);
+        }
+
         collection.insertOne(document);
         boolean hasNotId = entity.elements().stream()
                 .map(Element::name).noneMatch(k -> k.equals(ID_FIELD));

jnosql-mongodb/src/test/java/org/eclipse/jnosql/databases/mongodb/communication/MongoDBDocumentManagerTest.java

@@ -84,7 +84,7 @@ void shouldInsertAndIgnoreIdNull() {
         var entity = getEntity();
         entity.add("_id", null);
         var documentEntity = entityManager.insert(entity);
-        Element id = documentEntity.find("_id").orElseThrow();
+        var id = documentEntity.find("_id").orElseThrow();
         entityManager.delete(DeleteQuery.delete().from(COLLECTION_NAME).where("_id").eq(id.get()).build());
     }