Improve code formatting.

src/main/java/cool/mqtt/hooks/HookException.java

@@ -7,22 +7,16 @@ public class HookException extends Exception {
 
   private static final long serialVersionUID = 79558317492415306L;
 
-  /** The error code */
   private int code;
 
   /**
-   * Constructs an {@code HookException} with the specified error code and
-   * detail message.
+   * Constructs an {@code HookException} with the specified error code and detail message.
    * 
-   * @param code
-   *          the error code that can be used to distinguish the kind of
-   *          problem. It must be a non negative integer, otherwise it will
-   *          be replaced by {@code 0}
-   * @param message
-   *          the detail message to be forwarded to the Client. It can be
-   *          null. The message should be in simple ASCII, otherwise it
-   *          might be altered in order to be sent to the client; multiline
-   *          text is also not allowed
+   * @param code the error code that can be used to distinguish the kind of problem. It must be a
+   *        non negative integer, otherwise it will be replaced by {@code 0}
+   * @param message the detail message to be forwarded to the Client. It can be null. The message
+   *        should be in simple ASCII, otherwise it might be altered in order to be sent to the
+   *        client; multiline text is also not allowed
    */
   public HookException(int code, String message) {
     super(message);
@@ -33,6 +27,8 @@ public HookException(int code, String message) {
   }
 
   /**
+   * Returns the error code.
+   * 
    * @return the error code
    */
   public int getCode() {