Resolves checkstyle errors for remaining p (#1091)

* Reduces checkstyle errors in page-object

* Reduces checkstyle errors in partial-response

* Reduces checkstyle errors in pipeline

* Reduces checkstyle errors in poison-pill

* Reduces checkstyle errors in priority-queue

* Reduces checkstyle errors in private-class-data

* Reduces checkstyle errors in property

* Reduces checkstyle errors in prototype

* Reduces checkstyle errors in proxy

partial-response/src/main/java/com/iluwatar/partialresponse/FieldJsonMapper.java

@@ -26,11 +26,13 @@ package com.iluwatar.partialresponse;
 import java.lang.reflect.Field;
 
 /**
- * Map a video to json
+ * Map a video to json.
  */
 public class FieldJsonMapper {
 
   /**
+   * Gets json of required fields from video.
+   *
    * @param video  object containing video information
    * @param fields fields information to get
    * @return json of required fields from video