diff --git a/jpa-storedprocedure/src/main/java/com/baeldung/jpa/model/Car.java b/jpa-storedprocedure/src/main/java/com/baeldung/jpa/model/Car.java
index bd7c775614..676d76307e 100644
--- a/jpa-storedprocedure/src/main/java/com/baeldung/jpa/model/Car.java
+++ b/jpa-storedprocedure/src/main/java/com/baeldung/jpa/model/Car.java
@@ -1,23 +1,27 @@
 package com.baeldung.jpa.model;
 
-import javax.persistence.*;
-
-/**
- * Created by Giuseppe Bueti on 22/02/2016.
- */
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.NamedStoredProcedureQueries;
+import javax.persistence.NamedStoredProcedureQuery;
+import javax.persistence.ParameterMode;
+import javax.persistence.StoredProcedureParameter;
+import javax.persistence.Table;
 
 @Entity
 @Table(name = "CAR")
 @NamedStoredProcedureQueries({
-        @NamedStoredProcedureQuery(name = "findByYearProcedure", procedureName = "FIND_CAR_BY_YEAR", resultClasses = { Car.class },
-                parameters = { @StoredProcedureParameter(name = "p_year", type = Integer.class, mode = ParameterMode.IN) }) })
+        @NamedStoredProcedureQuery(name = "findByYearProcedure", procedureName = "FIND_CAR_BY_YEAR", resultClasses = { Car.class }, parameters = { @StoredProcedureParameter(name = "p_year", type = Integer.class, mode = ParameterMode.IN) }) })
 public class Car {
 
     private long id;
     private String model;
     private Integer year;
 
-    public Car(String model, Integer year) {
+    public Car(final String model, final Integer year) {
         this.model = model;
         this.year = year;
     }
@@ -32,7 +36,7 @@ public class Car {
         return id;
     }
 
-    public void setId(long id) {
+    public void setId(final long id) {
         this.id = id;
     }
 
@@ -41,7 +45,7 @@ public class Car {
         return model;
     }
 
-    public void setModel(String model) {
+    public void setModel(final String model) {
         this.model = model;
     }
 
@@ -50,7 +54,7 @@ public class Car {
         return year;
     }
 
-    public void setYear(Integer year) {
+    public void setYear(final Integer year) {
         this.year = year;
     }
 }
diff --git a/jpa-storedprocedure/src/main/java/com/baeldung/jpa/model/QueryParameter.java b/jpa-storedprocedure/src/main/java/com/baeldung/jpa/model/QueryParameter.java
index 326886842d..0a15213f62 100644
--- a/jpa-storedprocedure/src/main/java/com/baeldung/jpa/model/QueryParameter.java
+++ b/jpa-storedprocedure/src/main/java/com/baeldung/jpa/model/QueryParameter.java
@@ -7,16 +7,16 @@ public class QueryParameter {
 
     private Map<String, Object> parameters = null;
 
-    private QueryParameter(String name, Object value) {
+    private QueryParameter(final String name, final Object value) {
         this.parameters = new HashMap<>();
         this.parameters.put(name, value);
     }
 
-    public static QueryParameter with(String name, Object value) {
+    public static QueryParameter with(final String name, final Object value) {
         return new QueryParameter(name, value);
     }
 
-    public QueryParameter and(String name, Object value) {
+    public QueryParameter and(final String name, final Object value) {
         this.parameters.put(name, value);
         return this;
     }
@@ -24,4 +24,5 @@ public class QueryParameter {
     public Map<String, Object> parameters() {
         return this.parameters;
     }
+
 }
\ No newline at end of file
diff --git a/jpa-storedprocedure/src/test/java/com/baeldung/jpa/storedprocedure/StoredProcedureTest.java b/jpa-storedprocedure/src/test/java/com/baeldung/jpa/storedprocedure/StoredProcedureTest.java
index c1fabcc24c..69351d9683 100644
--- a/jpa-storedprocedure/src/test/java/com/baeldung/jpa/storedprocedure/StoredProcedureTest.java
+++ b/jpa-storedprocedure/src/test/java/com/baeldung/jpa/storedprocedure/StoredProcedureTest.java
@@ -1,13 +1,20 @@
 package com.baeldung.jpa.storedprocedure;
 
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.EntityTransaction;
+import javax.persistence.ParameterMode;
+import javax.persistence.Persistence;
+import javax.persistence.StoredProcedureQuery;
+
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
 import com.baeldung.jpa.model.Car;
-import org.junit.*;
 
-import javax.persistence.*;
-
-/**
- * Created by Giuseppe Bueti on 23/02/2016.
- */
 public class StoredProcedureTest {
 
     private static EntityManagerFactory factory = null;
@@ -25,13 +32,13 @@ public class StoredProcedureTest {
 
     @Test
     public void createCarTest() {
-        EntityTransaction transaction = entityManager.getTransaction();
+        final EntityTransaction transaction = entityManager.getTransaction();
         try {
             transaction.begin();
-            Car car = new Car("Fiat Marea", 2015);
+            final Car car = new Car("Fiat Marea", 2015);
             entityManager.persist(car);
             transaction.commit();
-        } catch (Exception e) {
+        } catch (final Exception e) {
             System.out.println(e.getCause());
             if (transaction.isActive()) {
                 transaction.rollback();
@@ -42,13 +49,13 @@ public class StoredProcedureTest {
     @Test
     public void findCarsByYearNamedProcedure() {
         final StoredProcedureQuery findByYearProcedure = entityManager.createNamedStoredProcedureQuery("findByYearProcedure");
-        StoredProcedureQuery storedProcedure = findByYearProcedure.setParameter("p_year", 2015);
+        final StoredProcedureQuery storedProcedure = findByYearProcedure.setParameter("p_year", 2015);
         storedProcedure.getResultList().forEach(c -> Assert.assertEquals(new Integer(2015), ((Car) c).getYear()));
     }
 
     @Test
     public void findCarsByYearNoNamed() {
-        StoredProcedureQuery storedProcedure = entityManager.createStoredProcedureQuery("FIND_CAR_BY_YEAR", Car.class).registerStoredProcedureParameter(1, Integer.class, ParameterMode.IN).setParameter(1, 2015);
+        final StoredProcedureQuery storedProcedure = entityManager.createStoredProcedureQuery("FIND_CAR_BY_YEAR", Car.class).registerStoredProcedureParameter(1, Integer.class, ParameterMode.IN).setParameter(1, 2015);
         storedProcedure.getResultList().forEach(c -> Assert.assertEquals(new Integer(2015), ((Car) c).getYear()));
     }