BAEL-3091: The Prototype Pattern in Java (changed code based on valid comments from a reader)

annotations/annotation-user/src/main/java/com/baeldung/annotation/Person.java

@@ -0,0 +1,29 @@
+package com.baeldung.annotation;
+
+import com.baeldung.annotation.processor.BuilderProperty;
+
+public class Person {
+
+    private int age;
+
+    private String name;
+
+    public int getAge() {
+        return age;
+    }
+
+    @BuilderProperty
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    @BuilderProperty
+    public void setName(String name) {
+        this.name = name;
+    }
+
+}

annotations/annotation-user/src/main/resources/logback.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

annotations/annotation-user/src/test/java/com/baeldung/annotation/PersonBuilderUnitTest.java

@@ -0,0 +1,19 @@
+package com.baeldung.annotation;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class PersonBuilderUnitTest {
+
+    @Test
+    public void whenBuildPersonWithBuilder_thenObjectHasPropertyValues() {
+
+        Person person = new PersonBuilder().setAge(25).setName("John").build();
+
+        assertEquals(25, person.getAge());
+        assertEquals("John", person.getName());
+
+    }
+
+}