BAEL-2855 Add a new section in ConfigurationProperties article (#6808)

spring-boot/src/test/java/org/baeldung/properties/ConfigPropertiesIntegrationTest.java

@@ -53,4 +53,11 @@ public class ConfigPropertiesIntegrationTest {
         Assert.assertEquals("Incorrectly bound object property, username", "john", credentials.getUsername());
         Assert.assertEquals("Incorrectly bound object property, password", "password", credentials.getPassword());
     }
+
+    @Test
+    public void whenBeanMethodAnnotatedThenPropertiesCorrectlyBound(){
+        Item item = properties.item();
+        Assert.assertEquals("Incorrectly bound object property, item.name","Test item name", item.getName());
+        Assert.assertEquals("Incorrectly bound object property, item.size", 21, item.getSize());
+    }
 }

spring-boot/src/test/resources/configprops-test.properties

@@ -17,3 +17,6 @@ mail.credentials.username=john
 mail.credentials.password=password
 mail.credentials.authMethod=SHA1
 
+#Bean method properties
+item.name=Test item name
+item.size=21