diff --git a/spring-boot-modules/pom.xml b/spring-boot-modules/pom.xml
index b4cabaaedf..3a2f14f5df 100644
--- a/spring-boot-modules/pom.xml
+++ b/spring-boot-modules/pom.xml
@@ -56,7 +56,6 @@
spring-boot-performance
spring-boot-properties
spring-boot-properties-2
- spring-boot-properties-3
spring-boot-property-exp
spring-boot-runtime
spring-boot-security
diff --git a/spring-boot-modules/spring-boot-properties-3/pom.xml b/spring-boot-modules/spring-boot-properties-3/pom.xml
deleted file mode 100644
index 1e3d627b19..0000000000
--- a/spring-boot-modules/spring-boot-properties-3/pom.xml
+++ /dev/null
@@ -1,54 +0,0 @@
-
-
- 4.0.0
-
- com.baeldung.spring-boot-modules
- spring-boot-modules
- 1.0.0-SNAPSHOT
- ../
-
-
- spring-boot-properties-3
- 0.0.1-SNAPSHOT
- spring-boot-properties-3
- Spring Boot Properties Module
-
-
- 1.8
-
-
-
-
- org.springframework.boot
- spring-boot-starter
-
-
-
- org.springframework.boot
- spring-boot-starter-test
- test
-
-
- org.junit.vintage
- junit-vintage-engine
-
-
-
-
- org.springframework.boot
- spring-boot-starter-web
- RELEASE
-
-
-
-
-
-
- org.springframework.boot
- spring-boot-maven-plugin
-
-
-
-
-
diff --git a/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/DemoApplication.java b/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/DemoApplication.java
deleted file mode 100644
index cf2fb7f981..0000000000
--- a/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/DemoApplication.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package com.baeldung.boot.properties;
-
-import com.baeldung.boot.properties.config.TshirtSizeConfig;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
-
-@SpringBootApplication
-@EnableConfigurationProperties(TshirtSizeConfig.class)
-public class DemoApplication {
-
- public static void main(String[] args) {
- SpringApplication.run(DemoApplication.class, args);
- }
-
-}
diff --git a/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/config/TshirtSizeConfig.java b/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/config/TshirtSizeConfig.java
deleted file mode 100644
index 690763ab7b..0000000000
--- a/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/config/TshirtSizeConfig.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package com.baeldung.boot.properties.config;
-
-import org.springframework.boot.context.properties.ConfigurationProperties;
-
-import java.util.Map;
-
-@ConfigurationProperties(prefix = "t-shirt-size")
-public class TshirtSizeConfig {
-
- private final Map simpleMapping;
-
- private final Map> complexMapping;
-
-
- public TshirtSizeConfig(Map simpleMapping, Map> complexMapping) {
- this.simpleMapping = simpleMapping;
- this.complexMapping = complexMapping;
- }
-
- public Map getSimpleMapping() {
- return simpleMapping;
- }
-
- public Map> getComplexMapping() {
- return complexMapping;
- }
-}
diff --git a/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/controller/TshirtSizeController.java b/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/controller/TshirtSizeController.java
deleted file mode 100644
index 6b713c5be8..0000000000
--- a/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/controller/TshirtSizeController.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package com.baeldung.boot.properties.controller;
-
-import org.springframework.web.bind.annotation.*;
-import com.baeldung.boot.properties.service.SizeConverterService;
-
-@RestController
-@RequestMapping(value = "/")
-public class TshirtSizeController {
-
- private final SizeConverterService service;
-
- public TshirtSizeController(SizeConverterService service) {
- this.service = service;
- }
-
- @RequestMapping(value ="convertSize", method = RequestMethod.GET)
- public int convertSize(@RequestParam(value = "label") final String label, @RequestParam(value = "countryCode", required = false) final String countryCode) {
- return service.convertSize(label, countryCode);
- }
-
-}
diff --git a/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/service/SizeConverterImpl.java b/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/service/SizeConverterImpl.java
deleted file mode 100644
index 34f7fe2ded..0000000000
--- a/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/service/SizeConverterImpl.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.baeldung.boot.properties.service;
-
-import org.springframework.stereotype.Service;
-import com.baeldung.boot.properties.config.TshirtSizeConfig;
-
-
-@Service
-public class SizeConverterImpl implements SizeConverterService {
-
- private final TshirtSizeConfig tshirtSizeConfig;
-
- public SizeConverterImpl(TshirtSizeConfig tshirtSizeConfig) {
- this.tshirtSizeConfig = tshirtSizeConfig;
- }
-
- public int convertSize(String label, String countryCode) {
- if(countryCode == null) {
- return tshirtSizeConfig.getSimpleMapping().get(label);
- }
- return tshirtSizeConfig.getComplexMapping().get(label).get(countryCode.toLowerCase());
- }
-}
diff --git a/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/service/SizeConverterService.java b/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/service/SizeConverterService.java
deleted file mode 100644
index 412199b176..0000000000
--- a/spring-boot-modules/spring-boot-properties-3/src/main/java/com/baeldung/boot/properties/service/SizeConverterService.java
+++ /dev/null
@@ -1,8 +0,0 @@
-package com.baeldung.boot.properties.service;
-
-
-public interface SizeConverterService {
-
- int convertSize(String label, String countryCode);
-
-}
diff --git a/spring-boot-modules/spring-boot-properties-3/src/main/resources/application.yml b/spring-boot-modules/spring-boot-properties-3/src/main/resources/application.yml
deleted file mode 100644
index 8779cb6b0c..0000000000
--- a/spring-boot-modules/spring-boot-properties-3/src/main/resources/application.yml
+++ /dev/null
@@ -1,30 +0,0 @@
- t-shirt-size:
- simple-mapping:
- XS: 6
- S: 8
- M: 10
- L: 12
- XL: 14
-
-
- complex-mapping:
- XS:
- uk: 6
- fr: 34
- us: 2
- S:
- uk: 8
- fr: 36
- us: 4
- M:
- uk: 10
- fr: 38
- us: 6
- L:
- uk: 12
- fr: 40
- us: 8
- XL:
- uk: 14
- fr: 42
- us: 10
diff --git a/spring-boot-modules/spring-boot-properties-3/src/test/java/com/baeldung/boot/properties/controller/TshirtSizeControllerTest.java b/spring-boot-modules/spring-boot-properties-3/src/test/java/com/baeldung/boot/properties/controller/TshirtSizeControllerTest.java
deleted file mode 100644
index 0b70ed8622..0000000000
--- a/spring-boot-modules/spring-boot-properties-3/src/test/java/com/baeldung/boot/properties/controller/TshirtSizeControllerTest.java
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.baeldung.boot.properties.controller;
-
-import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.ExtendWith;
-import org.mockito.InjectMocks;
-import org.mockito.Mock;
-import org.mockito.junit.jupiter.MockitoExtension;
-import com.baeldung.boot.properties.service.SizeConverterService;
-
-import static org.junit.jupiter.api.Assertions.*;
-import static org.mockito.Mockito.when;
-
-@ExtendWith(MockitoExtension.class)
-class TshirtSizeControllerUnitTest {
-
- @Mock
- private SizeConverterService service;
-
- @InjectMocks
- private TshirtSizeController tested;
-
- @Test
- void whenConvertSize_thenOK() {
-
- // Given
- String label = "S";
- String countryCode = "fr";
- int result = 36;
-
- // When
- when(service.convertSize(label, countryCode)).thenReturn(result);
- int actual = tested.convertSize(label, countryCode);
-
- // Then
- assertEquals(actual, result);
-
- }
-}
\ No newline at end of file