diff --git a/hexagonal-architecture-poc/pom.xml b/hexagonal-architecture-poc/pom.xml
deleted file mode 100644
index b31a6dec90..0000000000
--- a/hexagonal-architecture-poc/pom.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-   	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>org.springframework.boot</groupId>
-		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.0.5.RELEASE</version>
-		<relativePath />
-	</parent>
-	<groupId>com.baeldung</groupId>
-	<artifactId>hexagonal-architecture-poc</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<name>hexagonal-architecture-poc</name>
-	<description>Demo project for Hexagonal Architecture POC</description>
-
-	<properties>
-		<java.version>1.8</java.version>
-	</properties>
-
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-data-jpa</artifactId>
-		</dependency>
-		<dependency>
-		    <groupId>com.h2database</groupId>
-		    <artifactId>h2</artifactId>
-		    <scope>runtime</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-	</dependencies>
-
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
-</project>
diff --git a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/HexagonalArchitecturePocApplication.java b/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/HexagonalArchitecturePocApplication.java
deleted file mode 100644
index 1690fbbeb5..0000000000
--- a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/HexagonalArchitecturePocApplication.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.baeldung.hexagonal;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class HexagonalArchitecturePocApplication {
-
-	public static void main(String[] args) {
-		SpringApplication.run(HexagonalArchitecturePocApplication.class, args);
-	}
-
-}
diff --git a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/boundary/input/OrderService.java b/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/boundary/input/OrderService.java
deleted file mode 100644
index 07793f75ab..0000000000
--- a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/boundary/input/OrderService.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package com.baeldung.hexagonal.boundary.input;
-
-import org.springframework.stereotype.Service;
-
-import com.baeldung.hexagonal.core.entities.Order;
-
-@Service public interface OrderService {
-	Iterable<Order> getOrders();
-	Order createOrder(Double total);
-	boolean registerOrder(Order order);
-}
diff --git a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/boundary/output/OrderRepository.java b/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/boundary/output/OrderRepository.java
deleted file mode 100644
index ea1d38d296..0000000000
--- a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/boundary/output/OrderRepository.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package com.baeldung.hexagonal.boundary.output;
-
-import java.util.List;
-
-import org.springframework.data.repository.CrudRepository;
-import org.springframework.stereotype.Repository;
-
-import com.baeldung.hexagonal.core.entities.Order;
-
-@Repository public interface OrderRepository extends CrudRepository<Order, Long>{
-}
diff --git a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/core/entities/Order.java b/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/core/entities/Order.java
deleted file mode 100644
index db0c4efd54..0000000000
--- a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/core/entities/Order.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package com.baeldung.hexagonal.core.entities;
-
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-import javax.persistence.Table;
-
-@Entity @Table(name="Orders") public class Order {
-	@Id @GeneratedValue(strategy = GenerationType.IDENTITY) Long id;
-	Double total;
-	
-	public Order() {
-		super();
-	}
-	public Double getTotal() {
-		return total;
-	}
-	public void setTotal(Double total) {
-		this.total = total;
-	}
-	public Long getId() {
-		return id;
-	}
-	
-	
-}
diff --git a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/core/services/OrderServiceImpl.java b/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/core/services/OrderServiceImpl.java
deleted file mode 100644
index d3d8f1ba6a..0000000000
--- a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/core/services/OrderServiceImpl.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package com.baeldung.hexagonal.core.services;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
-import com.baeldung.hexagonal.boundary.input.OrderService;
-import com.baeldung.hexagonal.boundary.output.OrderRepository;
-import com.baeldung.hexagonal.core.entities.Order;
-
-@Service public class OrderServiceImpl implements OrderService {
-
-	@Autowired OrderRepository orderRepository;
-	
-	@Override
-	public Iterable<Order> getOrders() {
-		return orderRepository.findAll();
-	}
-
-	@Override
-	public boolean registerOrder(Order order) {
-		if (order.getTotal() > 0)
-			orderRepository.save(order);
-		else
-			return false;
-		
-		return true;
-	}
-	
-	@Override
-	public Order createOrder(Double total) {
-		Order order = new Order();
-		order.setTotal(total);	
-		return order;
-	}
-}
diff --git a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/outside/OrderController.java b/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/outside/OrderController.java
deleted file mode 100644
index 85c2e42368..0000000000
--- a/hexagonal-architecture-poc/src/main/java/com/baeldung/hexagonal/outside/OrderController.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.baeldung.hexagonal.outside;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
-
-import com.baeldung.hexagonal.boundary.input.OrderService;
-import com.baeldung.hexagonal.core.entities.Order;
-
-@RestController public class OrderController {
-
-	@Autowired OrderService orderService;
-	
-	@GetMapping(path = "/orders/list")
-	public Iterable<Order> getOrders(){
-		return orderService.getOrders();
-	}
-	
-	@GetMapping(path = "/orders/add")
-	public String placeOrder(@RequestParam Double total) {
-		boolean isPlaced = orderService.registerOrder(orderService.createOrder(total));	
-		return isPlaced ? "Ok" : "Nok";
-	}
-	
-	@GetMapping(path = "/orders/add-commission")
-	public String placeCommissionOrder(@RequestParam Double total) {
-		boolean isPlaced = orderService.registerOrder(orderService.createOrder(total*1.05));		
-		return isPlaced ? "Ok" : "Nok";
-	}
-
-}
diff --git a/hexagonal-architecture-poc/src/main/resources/application.properties b/hexagonal-architecture-poc/src/main/resources/application.properties
deleted file mode 100644
index bc2fdde8c1..0000000000
--- a/hexagonal-architecture-poc/src/main/resources/application.properties
+++ /dev/null
@@ -1,5 +0,0 @@
-spring.datasource.url=jdbc:h2:mem:testdb
-spring.datasource.driverClassName=org.h2.Driver
-spring.datasource.username=sa
-spring.datasource.password=password
-spring.jpa.database-platform=org.hibernate.dialect.H2Dialect