diff --git a/spring-core/src/main/java/com/baeldung/factorybean/FactoryBeanAppConfig.java b/spring-core/src/main/java/com/baeldung/factorybean/FactoryBeanAppConfig.java
index ab36df27cb..40e181b7a7 100644
--- a/spring-core/src/main/java/com/baeldung/factorybean/FactoryBeanAppConfig.java
+++ b/spring-core/src/main/java/com/baeldung/factorybean/FactoryBeanAppConfig.java
@@ -5,6 +5,7 @@ import org.springframework.context.annotation.Configuration;
 
 @Configuration
 public class FactoryBeanAppConfig {
+    
     @Bean
     public ToolFactory tool() {
         ToolFactory factory = new ToolFactory();
diff --git a/spring-core/src/main/java/com/baeldung/factorybean/InitializationToolFactory.java b/spring-core/src/main/java/com/baeldung/factorybean/InitializationToolFactory.java
index 6d2fd2564e..15e2b01f49 100644
--- a/spring-core/src/main/java/com/baeldung/factorybean/InitializationToolFactory.java
+++ b/spring-core/src/main/java/com/baeldung/factorybean/InitializationToolFactory.java
@@ -7,6 +7,7 @@ import org.springframework.beans.factory.InitializingBean;
 import org.springframework.util.StringUtils;
 
 public class InitializationToolFactory implements FactoryBean<Tool>, InitializingBean {
+    
     private int factoryId;
     private int toolId;
     private String toolName;
diff --git a/spring-core/src/main/java/com/baeldung/factorybean/NonSingleToolFactory.java b/spring-core/src/main/java/com/baeldung/factorybean/NonSingleToolFactory.java
index c818b775eb..158318649c 100644
--- a/spring-core/src/main/java/com/baeldung/factorybean/NonSingleToolFactory.java
+++ b/spring-core/src/main/java/com/baeldung/factorybean/NonSingleToolFactory.java
@@ -3,6 +3,7 @@ package com.baeldung.factorybean;
 import org.springframework.beans.factory.config.AbstractFactoryBean;
 
 public class NonSingleToolFactory extends AbstractFactoryBean<Tool> {
+    
     private int factoryId;
     private int toolId;
     private String toolName;
diff --git a/spring-core/src/main/java/com/baeldung/factorybean/PostConstructToolFactory.java b/spring-core/src/main/java/com/baeldung/factorybean/PostConstructToolFactory.java
index 47db05d271..696545a70a 100644
--- a/spring-core/src/main/java/com/baeldung/factorybean/PostConstructToolFactory.java
+++ b/spring-core/src/main/java/com/baeldung/factorybean/PostConstructToolFactory.java
@@ -8,6 +8,7 @@ import org.springframework.beans.factory.FactoryBean;
 import org.springframework.util.StringUtils;
 
 public class PostConstructToolFactory implements FactoryBean<Tool> {
+    
     private int factoryId;
     private int toolId;
     private String toolName;
diff --git a/spring-core/src/main/java/com/baeldung/factorybean/SingleToolFactory.java b/spring-core/src/main/java/com/baeldung/factorybean/SingleToolFactory.java
index bc0c2d79c0..37fd978a3c 100644
--- a/spring-core/src/main/java/com/baeldung/factorybean/SingleToolFactory.java
+++ b/spring-core/src/main/java/com/baeldung/factorybean/SingleToolFactory.java
@@ -4,6 +4,7 @@ import org.springframework.beans.factory.config.AbstractFactoryBean;
 
 //no need to set singleton property because default value is true
 public class SingleToolFactory extends AbstractFactoryBean<Tool> {
+    
     private int factoryId;
     private int toolId;
     private String toolName;
diff --git a/spring-core/src/main/java/com/baeldung/factorybean/Tool.java b/spring-core/src/main/java/com/baeldung/factorybean/Tool.java
index a7f7f7681e..2a69cbaf2a 100644
--- a/spring-core/src/main/java/com/baeldung/factorybean/Tool.java
+++ b/spring-core/src/main/java/com/baeldung/factorybean/Tool.java
@@ -1,13 +1,11 @@
 package com.baeldung.factorybean;
 
 public class Tool {
+    
     private int id;
     private String name;
     private double price;
 
-    public Tool() {
-    }
-
     public Tool(int id, String name, double price) {
         this.id = id;
         this.name = name;
diff --git a/spring-core/src/main/java/com/baeldung/factorybean/ToolFactory.java b/spring-core/src/main/java/com/baeldung/factorybean/ToolFactory.java
index ca8f82eadb..5e6385c679 100644
--- a/spring-core/src/main/java/com/baeldung/factorybean/ToolFactory.java
+++ b/spring-core/src/main/java/com/baeldung/factorybean/ToolFactory.java
@@ -3,6 +3,7 @@ package com.baeldung.factorybean;
 import org.springframework.beans.factory.FactoryBean;
 
 public class ToolFactory implements FactoryBean<Tool> {
+   
     private int factoryId;
     private int toolId;
     private String toolName;
diff --git a/spring-core/src/main/java/com/baeldung/factorybean/Worker.java b/spring-core/src/main/java/com/baeldung/factorybean/Worker.java
index 9a35c0656b..0d1dc5d7d6 100644
--- a/spring-core/src/main/java/com/baeldung/factorybean/Worker.java
+++ b/spring-core/src/main/java/com/baeldung/factorybean/Worker.java
@@ -1,11 +1,11 @@
 package com.baeldung.factorybean;
 
 public class Worker {
+
     private String number;
     private Tool tool;
 
-    public Worker() {
-    }
+    public Worker() {}
 
     public Worker(String number, Tool tool) {
         this.number = number;
diff --git a/spring-core/src/main/resources/factorybean-abstract-spring-ctx.xml b/spring-core/src/main/resources/factorybean-abstract-spring-ctx.xml
index 6bce114d9c..33b3051cae 100644
--- a/spring-core/src/main/resources/factorybean-abstract-spring-ctx.xml
+++ b/spring-core/src/main/resources/factorybean-abstract-spring-ctx.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-       xmlns="http://www.springframework.org/schema/beans"
-       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+  xmlns="http://www.springframework.org/schema/beans"
+  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
 
     <bean id="singleTool" class="com.baeldung.factorybean.SingleToolFactory">
         <property name="factoryId" value="3001"/>
diff --git a/spring-core/src/main/resources/factorybean-init-spring-ctx.xml b/spring-core/src/main/resources/factorybean-init-spring-ctx.xml
index 47722b6d3d..1ff492e5df 100644
--- a/spring-core/src/main/resources/factorybean-init-spring-ctx.xml
+++ b/spring-core/src/main/resources/factorybean-init-spring-ctx.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-       xmlns="http://www.springframework.org/schema/beans"
-       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+  xmlns="http://www.springframework.org/schema/beans"
+  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
 
     <bean id="initializationTool" class="com.baeldung.factorybean.InitializationToolFactory">
         <property name="factoryId" value="1010"/>
diff --git a/spring-core/src/main/resources/factorybean-postconstruct-spring-ctx.xml b/spring-core/src/main/resources/factorybean-postconstruct-spring-ctx.xml
index 94a4f407a8..f34325160f 100644
--- a/spring-core/src/main/resources/factorybean-postconstruct-spring-ctx.xml
+++ b/spring-core/src/main/resources/factorybean-postconstruct-spring-ctx.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-       xmlns:context="http://www.springframework.org/schema/context"
-       xmlns="http://www.springframework.org/schema/beans"
-       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
+  xmlns:context="http://www.springframework.org/schema/context"
+  xmlns="http://www.springframework.org/schema/beans"
+  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
 
     <context:annotation-config/>
 
diff --git a/spring-core/src/main/resources/factorybean-spring-ctx.xml b/spring-core/src/main/resources/factorybean-spring-ctx.xml
index ab0c646bb0..2987b67d94 100644
--- a/spring-core/src/main/resources/factorybean-spring-ctx.xml
+++ b/spring-core/src/main/resources/factorybean-spring-ctx.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-       xmlns="http://www.springframework.org/schema/beans"
-       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+  xmlns="http://www.springframework.org/schema/beans"
+  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
 
     <bean id="tool" class="com.baeldung.factorybean.ToolFactory">
         <property name="factoryId" value="9090"/>
diff --git a/spring-core/src/test/java/com/baeldung/factorybean/AbstractFactoryBeanTest.java b/spring-core/src/test/java/com/baeldung/factorybean/AbstractFactoryBeanTest.java
index 790107f114..a7ba6d9a68 100644
--- a/spring-core/src/test/java/com/baeldung/factorybean/AbstractFactoryBeanTest.java
+++ b/spring-core/src/test/java/com/baeldung/factorybean/AbstractFactoryBeanTest.java
@@ -9,6 +9,7 @@ import org.springframework.context.ApplicationContext;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
 public class AbstractFactoryBeanTest {
+    
     @Test
     public void testSingleToolFactory() {
         ApplicationContext context = new ClassPathXmlApplicationContext("classpath:factorybean-abstract-spring-ctx.xml");
diff --git a/spring-core/src/test/java/com/baeldung/factorybean/FactoryBeanInitializeTest.java b/spring-core/src/test/java/com/baeldung/factorybean/FactoryBeanInitializeTest.java
index 673bab6f63..87947b148a 100644
--- a/spring-core/src/test/java/com/baeldung/factorybean/FactoryBeanInitializeTest.java
+++ b/spring-core/src/test/java/com/baeldung/factorybean/FactoryBeanInitializeTest.java
@@ -5,6 +5,7 @@ import org.springframework.beans.factory.BeanCreationException;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
 public class FactoryBeanInitializeTest {
+	
     @Test(expected = BeanCreationException.class)
     public void testInitializationToolFactory() {
         new ClassPathXmlApplicationContext("classpath:factorybean-init-spring-ctx.xml");
diff --git a/spring-core/src/test/java/com/baeldung/factorybean/FactoryBeanTest.java b/spring-core/src/test/java/com/baeldung/factorybean/FactoryBeanTest.java
index d06448b63c..f35503794a 100644
--- a/spring-core/src/test/java/com/baeldung/factorybean/FactoryBeanTest.java
+++ b/spring-core/src/test/java/com/baeldung/factorybean/FactoryBeanTest.java
@@ -9,6 +9,7 @@ import org.springframework.context.annotation.AnnotationConfigApplicationContext
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
 public class FactoryBeanTest {
+    
     @Test
     public void testConstructWorkerByXml() {
         ApplicationContext context = new ClassPathXmlApplicationContext("classpath:factorybean-spring-ctx.xml");