fix merge issue; refactoring

mapstruct/src/main/java/com/baeldung/dto/SimpleSource.java

@@ -0,0 +1,24 @@
+package com.baeldung.dto;
+
+public class SimpleSource {
+
+    private String name;
+    private String description;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+}