quick fix

spring-boot-modules/spring-boot-properties-2/src/main/java/com/baeldung/properties/yamllist/pojo/ApplicationProps.java

@@ -1,6 +1,7 @@
 package com.baeldung.properties.yamllist.pojo;
 
 import java.util.List;
+import java.util.Map;
 
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.stereotype.Component;
@@ -10,7 +11,7 @@ import org.springframework.stereotype.Component;
 public class ApplicationProps {
 
     private List<Object> profiles;
-    private List<List<String>> team;
+    private List<Map<String, Object>> props;
     private List<User> users;
 
     public List<Object> getProfiles() {
@@ -21,12 +22,12 @@ public class ApplicationProps {
         this.profiles = profiles;
     }
 
-    public List<List<String>> getTeam() {
-        return team;
+    public List<Map<String, Object>> getProps() {
+        return props;
     }
 
-    public void setTeam(List<List<String>> team) {
-        this.team = team;
+    public void setProps(List<Map<String, Object>> props) {
+        this.props = props;
     }
 
     public List<User> getUsers() {

spring-boot-modules/spring-boot-properties-2/src/main/resources/application.yml

@@ -28,15 +28,17 @@ application:
     - prod
     - 1
     - 2
-  team: 
+  props: 
     -
-      - James
-      - Matthew
-      - Olivia
+      name: YamlList
+      url: http://yamllist.dev
+      description: Mapping list in Yaml to list of objects in Spring Boot
     -
-      - Natalie
-      - Brittany
-      - Christian
+      ip: 10.10.10.10
+      port: 8091
+    -
+      email: support@yamllist.dev
+      contact: http://yamllist.dev/contact
   users:
     -
       username: admin

spring-boot-modules/spring-boot-properties-2/src/test/java/com/baeldung/properties/yamllist/YamlComplexListsIntegrationTest.java

@@ -22,9 +22,13 @@ class YamlComplexListsIntegrationTest {
         assertThat(applicationProps.getUsers()
             .get(0)
             .getPassword()).isEqualTo("admin@10@");
-        assertThat(applicationProps.getTeam()
+        assertThat(applicationProps.getProps()
             .get(0)
-            .size()).isEqualTo(3);
+            .get("name")).isEqualTo("YamlList");
+        assertThat(applicationProps.getProps()
+            .get(1)
+            .get("port")
+            .getClass()).isEqualTo(Integer.class);
     }
 
 }

spring-boot-modules/spring-boot-properties-2/src/test/java/com/baeldung/properties/yamllist/YamlSimpleListIntegrationTest.java

@@ -23,8 +23,7 @@ class YamlSimpleListIntegrationTest {
             .get(0)).isEqualTo("dev");
         assertThat(applicationProps.getProfiles()
             .get(4)
-            .getClass()
-            .toString()).isEqualTo("class java.lang.Integer");
+            .getClass()).isEqualTo(Integer.class);
         assertThat(applicationProps.getProfiles()
             .size()).isEqualTo(5);
     }