diff --git a/spring-boot-security/pom.xml b/spring-boot-security/pom.xml
index b10f8e6e47..130bd52235 100644
--- a/spring-boot-security/pom.xml
+++ b/spring-boot-security/pom.xml
@@ -10,10 +10,9 @@
     <description>Spring Boot Security Auto-Configuration</description>
 
     <parent>
-        <groupId>org.springframework.boot</groupId>
-        <artifactId>spring-boot-starter-parent</artifactId>
-        <version>1.5.9.RELEASE</version>
-        <relativePath/> <!-- lookup parent from repository -->
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
     </parent>
 
     <dependencyManagement>
@@ -21,7 +20,7 @@
             <dependency>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-dependencies</artifactId>
-                <version>1.5.9.RELEASE</version>
+                <version>${spring-boot.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -68,16 +67,6 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <goals>
-                            <goal>repackage</goal>
-                        </goals>
-                        <configuration> <!-- multiple main classes present, choose one -->
-                            <mainClass>com.baeldung.springbootsecurity.basic_auth.SpringBootSecurityApplication</mainClass>
-                        </configuration>
-                    </execution>
-                </executions>
             </plugin>
         </plugins>
     </build>
@@ -86,6 +75,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>1.8</java.version>
+        <spring-boot.version>1.5.9.RELEASE</spring-boot.version>
     </properties>
 
 </project>
diff --git a/spring-boot-security/src/main/java/com/baeldung/springbootsecurity/form_login/configuration/SecurityConfiguration.java b/spring-boot-security/src/main/java/com/baeldung/springbootsecurity/form_login/configuration/SecurityConfiguration.java
index 1f5c53eb2b..6ab522ef00 100644
--- a/spring-boot-security/src/main/java/com/baeldung/springbootsecurity/form_login/configuration/SecurityConfiguration.java
+++ b/spring-boot-security/src/main/java/com/baeldung/springbootsecurity/form_login/configuration/SecurityConfiguration.java
@@ -1,14 +1,24 @@
 package com.baeldung.springbootsecurity.form_login.configuration;
 
-import com.baeldung.springbootsecurity.form_login.security.CustomAuthenticationFailureHandler;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpStatus;
 import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
+import org.springframework.security.core.AuthenticationException;
 import org.springframework.security.web.authentication.AuthenticationFailureHandler;
 
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.Calendar;
+import java.util.HashMap;
+import java.util.Map;
+
 @Configuration
 @EnableWebSecurity
 public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
@@ -37,4 +47,21 @@ public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
     public AuthenticationFailureHandler customAuthenticationFailureHandler() {
         return new CustomAuthenticationFailureHandler();
     }
+
+    /**
+     * Custom AuthenticationFailureHandler
+     */
+    public class CustomAuthenticationFailureHandler implements AuthenticationFailureHandler {
+        private final ObjectMapper objectMapper = new ObjectMapper();
+
+        @Override
+        public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
+            response.setStatus(HttpStatus.UNAUTHORIZED.value());
+            Map<String, Object> data = new HashMap<>();
+            data.put("timestamp", Calendar.getInstance().getTime());
+            data.put("exception", exception.getMessage());
+
+            response.getOutputStream().println(objectMapper.writeValueAsString(data));
+        }
+    }
 }
diff --git a/spring-boot-security/src/main/java/com/baeldung/springbootsecurity/form_login/security/CustomAuthenticationFailureHandler.java b/spring-boot-security/src/main/java/com/baeldung/springbootsecurity/form_login/security/CustomAuthenticationFailureHandler.java
deleted file mode 100644
index 2617c1f475..0000000000
--- a/spring-boot-security/src/main/java/com/baeldung/springbootsecurity/form_login/security/CustomAuthenticationFailureHandler.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.baeldung.springbootsecurity.form_login.security;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-import org.springframework.http.HttpStatus;
-import org.springframework.security.core.AuthenticationException;
-import org.springframework.security.web.authentication.AuthenticationFailureHandler;
-
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import java.io.IOException;
-import java.util.Calendar;
-import java.util.HashMap;
-import java.util.Map;
-
-public class CustomAuthenticationFailureHandler implements AuthenticationFailureHandler {
-    private final ObjectMapper objectMapper = new ObjectMapper();
-
-    @Override
-    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
-        response.setStatus(HttpStatus.UNAUTHORIZED.value());
-        Map<String, Object> data = new HashMap<>();
-        data.put("timestamp", Calendar.getInstance().getTime());
-        data.put("exception", exception.getMessage());
-
-        response.getOutputStream().println(objectMapper.writeValueAsString(data));
-    }
-}