diff --git a/patterns/hexagonal-architecture/.gitignore b/patterns/hexagonal-architecture/.gitignore
deleted file mode 100644
index 65069b2e61..0000000000
--- a/patterns/hexagonal-architecture/.gitignore
+++ /dev/null
@@ -1,33 +0,0 @@
-target/
-.mvn/
-mvnw
-mvnw.cmd
-!.mvn/wrapper/maven-wrapper.jar
-!**/src/main/**
-!**/src/test/**
-
-### STS ###
-.apt_generated
-.classpath
-.factorypath
-.project
-.settings
-.springBeans
-.sts4-cache
-
-### IntelliJ IDEA ###
-.idea
-*.iws
-*.iml
-*.ipr
-
-### NetBeans ###
-/nbproject/private/
-/nbbuild/
-/dist/
-/nbdist/
-/.nb-gradle/
-build/
-
-### VS Code ###
-.vscode/
diff --git a/patterns/hexagonal-architecture/README.md b/patterns/hexagonal-architecture/README.md
deleted file mode 100644
index 94224a737d..0000000000
--- a/patterns/hexagonal-architecture/README.md
+++ /dev/null
@@ -1,24 +0,0 @@
-# HEXAGONAL ARCHITECTURE - EXAMPLE IN JAVA
-
-A Spring Boot base web application for address book has been built as part of this project based on the hexagonal architecture guidelines, which allows the user to add a contact ad list all the contacts that are available.
-
-### Running the application
-
-The application can be run using maven spring-boot run command
-
-```
-mvn spring-boot:run
-
-```
-
-New contact can be added through a POST request on http://loalhost:8080/contacts with the body as
-
-```
-{
- "name": "ABC",
- "address": "Address",
- "contactNumber": 1234567890
-}
-
-```
-Existing contacts can be listed using a GET request on the same url http://loalhost:8080/contacts
\ No newline at end of file
diff --git a/patterns/hexagonal-architecture/pom.xml b/patterns/hexagonal-architecture/pom.xml
deleted file mode 100644
index 908eb21c01..0000000000
--- a/patterns/hexagonal-architecture/pom.xml
+++ /dev/null
@@ -1,53 +0,0 @@
-
-
- 4.0.0
-
- org.springframework.boot
- spring-boot-starter-parent
- 2.2.0.RELEASE
-
-
- com.baeldung.hexagonal.arch
- hexagonal-architecture
- 0.0.1-SNAPSHOT
- hexagonal-architecture
- Demo project for Spring Boot
-
-
- 1.8
-
-
-
-
- org.springframework.boot
- spring-boot-starter-data-jpa
-
-
- org.springframework.boot
- spring-boot-starter-web
-
-
-
- org.springframework.boot
- spring-boot-starter-test
- test
-
-
- org.junit.vintage
- junit-vintage-engine
-
-
-
-
-
-
-
-
- org.springframework.boot
- spring-boot-maven-plugin
-
-
-
-
-
diff --git a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/AddressBookApplication.java b/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/AddressBookApplication.java
deleted file mode 100644
index e20b79f8c6..0000000000
--- a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/AddressBookApplication.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package com.baeldung.hexagonal.arch;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
-
-@SpringBootApplication
-@EnableAutoConfiguration(exclude = { DataSourceAutoConfiguration.class })
-public class AddressBookApplication {
-
- public static void main(String[] args) {
- SpringApplication.run(AddressBookApplication.class, args);
- }
-
-}
diff --git a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/adapter/controller/AddressBookController.java b/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/adapter/controller/AddressBookController.java
deleted file mode 100644
index 34566c6b61..0000000000
--- a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/adapter/controller/AddressBookController.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.baeldung.hexagonal.arch.adapter.controller;
-
-import java.util.List;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-import com.baeldung.hexagonal.arch.core.domain.Contact;
-import com.baeldung.hexagonal.arch.port.service.AddressBookService;
-
-@RestController
-@RequestMapping("/contacts")
-public class AddressBookController {
-
- @Autowired
- private AddressBookService addressBookService;
-
- @PostMapping
- public void addContact(@RequestBody Contact contact) {
- addressBookService.createContact(contact);
- }
-
- @GetMapping
- public List getAllContacts() {
- return addressBookService.getAllContacts();
- }
-
-}
diff --git a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/adapter/repository/ContactRepositoryImpl.java b/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/adapter/repository/ContactRepositoryImpl.java
deleted file mode 100644
index 235a899d7c..0000000000
--- a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/adapter/repository/ContactRepositoryImpl.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package com.baeldung.hexagonal.arch.adapter.repository;
-
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.stream.Collectors;
-
-import org.springframework.stereotype.Repository;
-
-import com.baeldung.hexagonal.arch.core.domain.Contact;
-import com.baeldung.hexagonal.arch.port.repo.ContactRepository;
-
-@Repository
-public class ContactRepositoryImpl implements ContactRepository {
-
- private Map contactsRepo = new HashMap();
-
- @Override
- public void createContact(Contact contact) {
- contactsRepo.put(contact.getName(), contact);
- }
-
- @Override
- public List getAllContacts() {
- return contactsRepo.values()
- .stream()
- .collect(Collectors.toList());
- }
-
-}
diff --git a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/core/domain/Contact.java b/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/core/domain/Contact.java
deleted file mode 100644
index 118657a8db..0000000000
--- a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/core/domain/Contact.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package com.baeldung.hexagonal.arch.core.domain;
-
-public class Contact {
-
- private String name;
- private String address;
- private int contactNumber;
-
- public String getName() {
- return name;
- }
-
- public void setName(String name) {
- this.name = name;
- }
-
- public String getAddress() {
- return address;
- }
-
- public void setAddress(String address) {
- this.address = address;
- }
-
- public int getContactNumber() {
- return contactNumber;
- }
-
- public void setContactNumber(int contactNumber) {
- this.contactNumber = contactNumber;
- }
-
-}
diff --git a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/core/service/AddressBookServiceImpl.java b/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/core/service/AddressBookServiceImpl.java
deleted file mode 100644
index 4a95e5cd72..0000000000
--- a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/core/service/AddressBookServiceImpl.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.baeldung.hexagonal.arch.core.service;
-
-import java.util.List;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
-import com.baeldung.hexagonal.arch.core.domain.Contact;
-import com.baeldung.hexagonal.arch.port.repo.ContactRepository;
-import com.baeldung.hexagonal.arch.port.service.AddressBookService;
-
-@Service
-public class AddressBookServiceImpl implements AddressBookService {
-
- @Autowired
- ContactRepository contactRepository;
-
- @Override
- public void createContact(Contact contact) {
- contactRepository.createContact(contact);
- }
-
- @Override
- public List getAllContacts() {
- return contactRepository.getAllContacts();
- }
-
-}
diff --git a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/port/repo/ContactRepository.java b/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/port/repo/ContactRepository.java
deleted file mode 100644
index a8cc4f73ea..0000000000
--- a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/port/repo/ContactRepository.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.baeldung.hexagonal.arch.port.repo;
-
-import java.util.List;
-
-import com.baeldung.hexagonal.arch.core.domain.Contact;
-
-public interface ContactRepository {
-
- void createContact(Contact contact);
-
- List getAllContacts();
-
-}
diff --git a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/port/service/AddressBookService.java b/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/port/service/AddressBookService.java
deleted file mode 100644
index b91683fbc2..0000000000
--- a/patterns/hexagonal-architecture/src/main/java/com/baeldung/hexagonal/arch/port/service/AddressBookService.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.baeldung.hexagonal.arch.port.service;
-
-import java.util.List;
-
-import com.baeldung.hexagonal.arch.core.domain.Contact;
-
-public interface AddressBookService {
-
- public void createContact(Contact contact);
-
- public List getAllContacts();
-
-}
diff --git a/patterns/hexagonal-architecture/src/main/resources/application.properties b/patterns/hexagonal-architecture/src/main/resources/application.properties
deleted file mode 100644
index 8b13789179..0000000000
--- a/patterns/hexagonal-architecture/src/main/resources/application.properties
+++ /dev/null
@@ -1 +0,0 @@
-