diff --git a/spring-boot-modules/spring-boot-servicelayer-validation/.gitignore b/spring-boot-modules/spring-boot-servicelayer-validation/.gitignore
deleted file mode 100644
index 8f5ee06047..0000000000
--- a/spring-boot-modules/spring-boot-servicelayer-validation/.gitignore
+++ /dev/null
@@ -1,63 +0,0 @@
-# Created by https://www.gitignore.io/api/eclipse
-
-### Eclipse ###
-
-.metadata
-target/
-bin/
-tmp/
-*.tmp
-*.bak
-*.swp
-*~.nib
-local.properties
-.settings/
-.loadpath
-.recommenders
-
-# External tool builders
-.externalToolBuilders/
-
-# Locally stored "Eclipse launch configurations"
-*.launch
-
-# PyDev specific (Python IDE for Eclipse)
-*.pydevproject
-
-# CDT-specific (C/C++ Development Tooling)
-.cproject
-
-# Java annotation processor (APT)
-.factorypath
-
-# PDT-specific (PHP Development Tools)
-.buildpath
-
-# sbteclipse plugin
-.target
-
-# Tern plugin
-.tern-project
-
-# TeXlipse plugin
-.texlipse
-
-# STS (Spring Tool Suite)
-.springBeans
-
-# Code Recommenders
-.recommenders/
-
-# Scala IDE specific (Scala & Java development for Eclipse)
-.cache-main
-.scala_dependencies
-.worksheet
-
-### Eclipse Patch ###
-# Eclipse Core
-.project
-
-# JDT-specific (Eclipse Java Development Tools)
-.classpath
-
-# End of https://www.gitignore.io/api/eclipse
\ No newline at end of file
diff --git a/spring-boot-modules/spring-boot-servicelayer-validation/README.md b/spring-boot-modules/spring-boot-servicelayer-validation/README.md
deleted file mode 100644
index 7c39135db6..0000000000
--- a/spring-boot-modules/spring-boot-servicelayer-validation/README.md
+++ /dev/null
@@ -1,4 +0,0 @@
-## Spring Service Layer Validation
-
-This module contains articles about validation in Service layer of Spring Boot project.
-
diff --git a/spring-boot-modules/spring-boot-servicelayer-validation/pom.xml b/spring-boot-modules/spring-boot-servicelayer-validation/pom.xml
deleted file mode 100644
index 31ec757699..0000000000
--- a/spring-boot-modules/spring-boot-servicelayer-validation/pom.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-
-
-
- 4.0.0
-
- com.baeldung.spring-service-layer-validation
- spring-service-layer-validation
- 0.0.1-SNAPSHOT
-
-
- UTF-8
- 12
- 12
-
-
-
- org.springframework.boot
- spring-boot-starter-parent
- 2.4.5
-
-
-
-
- org.springframework.boot
- spring-boot-starter-web
-
-
-
- org.hibernate.validator
- hibernate-validator
-
-
-
-
-
-
-
-
- org.springframework.boot
- spring-boot-maven-plugin
-
-
-
-
diff --git a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/SpringServiceLayerValidationApp.java b/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/SpringServiceLayerValidationApp.java
deleted file mode 100644
index ea80a5da33..0000000000
--- a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/SpringServiceLayerValidationApp.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.baeldung.spring.servicevalidation;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class SpringServiceLayerValidationApp {
-
- public static void main(String[] args) {
- SpringApplication.run(SpringServiceLayerValidationApp.class, args);
- }
-
-}
diff --git a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/controller/UserAccountController.java b/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/controller/UserAccountController.java
deleted file mode 100644
index b558ed89c2..0000000000
--- a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/controller/UserAccountController.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.baeldung.spring.servicevalidation.controller;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RestController;
-
-import com.baeldung.spring.servicevalidation.domain.UserAccount;
-import com.baeldung.spring.servicevalidation.service.UserAccountService;
-
-@RestController
-public class UserAccountController {
-
- @Autowired
- private UserAccountService service;
-
- @PostMapping("/addUserAccount")
- public Object addUserAccount(@RequestBody UserAccount userAccount) {
- return service.addUserAccount(userAccount);
- }
-
-}
diff --git a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/dao/UserAccountDao.java b/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/dao/UserAccountDao.java
deleted file mode 100644
index d170ceef58..0000000000
--- a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/dao/UserAccountDao.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.baeldung.spring.servicevalidation.dao;
-
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.Map;
-
-import org.springframework.stereotype.Service;
-
-import com.baeldung.spring.servicevalidation.domain.UserAccount;
-
-@Service
-public class UserAccountDao {
-
- private Map DB = new HashMap();
-
- public String addUserAccount(UserAccount useraccount) {
- DB.put(useraccount.getName(), useraccount);
- return "success";
- }
-
- public Collection getAllUserAccounts() {
-
- Collection list = DB.values();
- if(list.isEmpty()) {
- list.addAll(DB.values());
- }
- return list;
-
- }
-
-
-}
diff --git a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/domain/UserAccount.java b/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/domain/UserAccount.java
deleted file mode 100644
index 5b0e795a8a..0000000000
--- a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/domain/UserAccount.java
+++ /dev/null
@@ -1,77 +0,0 @@
-package com.baeldung.spring.servicevalidation.domain;
-
-import javax.validation.Valid;
-import javax.validation.constraints.Min;
-import javax.validation.constraints.NotBlank;
-import javax.validation.constraints.NotNull;
-import javax.validation.constraints.Size;
-
-public class UserAccount {
-
- @NotNull(message = "Password must be between 4 to 15 characters")
- @Size(min = 4, max = 15)
- private String password;
-
- @NotBlank(message = "Name must not be blank")
- private String name;
-
- @Min(value = 18, message = "Age should not be less than 18")
- private int age;
-
- @NotBlank(message = "Phone must not be blank")
- private String phone;
-
- @Valid
- @NotNull(message = "UserAddress must not be blank")
- private UserAddress useraddress;
-
- public UserAddress getUseraddress() {
- return useraddress;
- }
-
- public void setUseraddress(UserAddress useraddress) {
- this.useraddress = useraddress;
- }
-
- public UserAccount() {
-
- }
-
- public UserAccount(String email, String password, String name, int age) {
- this.password = password;
- this.name = name;
- }
-
- public String getName() {
- return name;
- }
-
- public void setName(String name) {
- this.name = name;
- }
-
- public String getPassword() {
- return password;
- }
-
- public void setPassword(String password) {
- this.password = password;
- }
-
- public int getAge() {
- return age;
- }
-
- public void setAge(int age) {
- this.age = age;
- }
-
- public String getPhone() {
- return phone;
- }
-
- public void setPhone(String phone) {
- this.phone = phone;
- }
-
-}
diff --git a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/domain/UserAddress.java b/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/domain/UserAddress.java
deleted file mode 100644
index 85e7dfc05c..0000000000
--- a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/domain/UserAddress.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.baeldung.spring.servicevalidation.domain;
-
-import javax.validation.constraints.NotBlank;
-public class UserAddress {
-
- @NotBlank
- private String countryCode;
-
- public String getCountryCode() {
- return countryCode;
- }
-
- public void setCountryCode(String countryCode) {
- this.countryCode = countryCode;
- }
-
-}
diff --git a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/service/UserAccountService.java b/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/service/UserAccountService.java
deleted file mode 100644
index 417e9a32b7..0000000000
--- a/spring-boot-modules/spring-boot-servicelayer-validation/src/main/java/com/baeldung/spring/servicevalidation/service/UserAccountService.java
+++ /dev/null
@@ -1,42 +0,0 @@
-package com.baeldung.spring.servicevalidation.service;
-
-import java.util.Set;
-
-import javax.validation.ConstraintViolation;
-import javax.validation.ConstraintViolationException;
-import javax.validation.Validator;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
-import com.baeldung.spring.servicevalidation.dao.UserAccountDao;
-import com.baeldung.spring.servicevalidation.domain.UserAccount;
-
-@Service
-public class UserAccountService {
-
- @Autowired
- private Validator validator;
-
- @Autowired
- private UserAccountDao dao;
-
- public String addUserAccount(UserAccount useraccount) {
-
- Set> violations = validator.validate(useraccount);
-
- if (!violations.isEmpty()) {
- StringBuilder sb = new StringBuilder();
- for (ConstraintViolation constraintViolation : violations) {
- sb.append(constraintViolation.getMessage());
- }
-
- dao.addUserAccount(useraccount);
-
- throw new ConstraintViolationException("Error occurred: " + sb.toString(), violations);
- }
-
- return "Account for " + useraccount.getName() + " Added!";
- }
-
-}