diff --git a/beehive-jdbc-mapper/src/test/java/com/moparisthebest/jdbc/QueryMapperTest.java b/beehive-jdbc-mapper/src/test/java/com/moparisthebest/jdbc/QueryMapperTest.java
index b997d08..006eebc 100644
--- a/beehive-jdbc-mapper/src/test/java/com/moparisthebest/jdbc/QueryMapperTest.java
+++ b/beehive-jdbc-mapper/src/test/java/com/moparisthebest/jdbc/QueryMapperTest.java
@@ -6,7 +6,6 @@ import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
-import java.lang.reflect.Constructor;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.util.*;
@@ -245,6 +244,11 @@ public class QueryMapperTest {
 		Assert.assertArrayEquals(arr, qm.toObject("SELECT 1, 2, 3 FROM person WHERE person_no = ?", Long[].class, fieldPerson1.getPersonNo()));
 	}
 
+	@Test(expected = com.moparisthebest.jdbc.MapperException.class)
+	public void testNoDefaultConstructorFails() throws Throwable {
+		qm.toObject("SELECT 1, 2, 3 FROM person WHERE person_no = ?", Long.class, fieldPerson1.getPersonNo());
+	}
+
 	private List<Map<String, String>> getListMap() {
 		final List<Map<String, String>> arrayMap = new ArrayList<Map<String, String>>();
 		for (final Person person : new Person[]{fieldPerson1, fieldBoss1, fieldBoss2}) {