BAEL-2503

Add a new section in Lombok builder article

lombok/src/main/java/com/baeldung/lombok/builder/RequiredFieldAnnotation.java

@@ -1,19 +1,17 @@
 package com.baeldung.lombok.builder;
 
 import lombok.Builder;
+import lombok.Getter;
 import lombok.NonNull;
 
-@Builder(builderMethodName = "hiddenBuilder")
+@Builder(builderMethodName = "internalBuilder")
+@Getter
 public class RequiredFieldAnnotation {
-    @NonNull
-    private String name;
-    private String description;
+
+    @NonNull String name;
+    String description;
 
     public static RequiredFieldAnnotationBuilder builder(String name) {
-        return hiddenBuilder().name(name);
-    }
-
-    public void example() {
-        RequiredFieldAnnotation.builder("NameField").description("Field Description").build();
+        return internalBuilder().name(name);
     }
 }

lombok/src/main/java/com/baeldung/lombok/builder/RequiredFieldOverload.java

@@ -1,20 +0,0 @@
-package com.baeldung.lombok.builder;
-
-import lombok.Builder;
-import lombok.NonNull;
-
-@Builder
-public class RequiredFieldOverload {
-    @NonNull
-    private String name;
-    private String description;
-
-    public static RequiredFieldOverloadBuilder builder(String name) {
-        return new RequiredFieldOverloadBuilder().name(name);
-    }
-
-    public void example() {
-        RequiredFieldAnnotation.builder("NameField").description("Field Description").build();
-    }
-
-}

lombok/src/test/java/com/baeldung/lombok/builder/RequiredFieldAnnotationTest.java

@@ -0,0 +1,21 @@
+package com.baeldung.lombok.builder;
+
+import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class RequiredFieldAnnotationTest {
+    RequiredFieldAnnotation requiredFieldTest;
+
+    @BeforeEach
+    void setUp() {
+        requiredFieldTest = RequiredFieldAnnotation.builder("NameField").description("Field Description").build();
+    }
+
+    @Test
+    public void givenBuilderWithRequiredParameter_thenParameterIsPresent() {
+        assertEquals(requiredFieldTest.getName(), "NameField");
+    }
+
+}