diff --git a/src/main/java/it/cavallium/strangedb/java/database/DatabaseJava.java b/src/main/java/it/cavallium/strangedb/java/database/DatabaseJava.java
index 0b47c06..630834f 100644
--- a/src/main/java/it/cavallium/strangedb/java/database/DatabaseJava.java
+++ b/src/main/java/it/cavallium/strangedb/java/database/DatabaseJava.java
@@ -24,6 +24,7 @@ public class DatabaseJava extends DatabaseCore implements IDatabaseTools {
 			throw new IOException("The database has been already closed!");
 		}
 		this.objectsIO.setEnhancedObject(0, loadedRootObject);
+		super.close();
 	}
 
 	public <T extends EnhancedObject> T loadRoot(Class<T> type, FunctionWithIO<IDatabaseTools, T> ifAbsent) throws IOException {
diff --git a/src/test/java/it/cavallium/strangedb/tests/EnhancedClassUpdate.java b/src/test/java/it/cavallium/strangedb/tests/EnhancedClassUpdate.java
index db8fde4..2416e48 100644
--- a/src/test/java/it/cavallium/strangedb/tests/EnhancedClassUpdate.java
+++ b/src/test/java/it/cavallium/strangedb/tests/EnhancedClassUpdate.java
@@ -21,9 +21,9 @@ public class EnhancedClassUpdate {
 
 	@Before
 	public void setUp() throws Exception {
-		path1 = Files.createTempFile("db-tests-", ".db");
-		path2 = Files.createTempFile("db-tests-", ".db");
-		path3 = Files.createTempFile("db-tests-", ".db");
+		path1 = Files.createTempFile("db-tests-data-", ".db");
+		path2 = Files.createTempFile("db-tests-blocks-", ".db");
+		path3 = Files.createTempFile("db-tests-references-", ".db");
 		db = new DatabaseJava(path1, path2, path3);
 		OldClass root = db.loadRoot(OldClass.class, OldClass::new);
 		root.field1 = "Abc";