Minor cleanup

By: Erik Broes <erikbroes@grum.nl>

paper-api/src/main/java/org/bukkit/plugin/messaging/ChannelNameTooLongException.java

@@ -3,6 +3,7 @@ package org.bukkit.plugin.messaging;
 /**
  * Thrown if a Plugin Channel is too long.
  */
+@SuppressWarnings("serial")
 public class ChannelNameTooLongException extends RuntimeException {
     public ChannelNameTooLongException() {
         super("Attempted to send a Plugin Message to a channel that was too large. The maximum length a channel may be is " + Messenger.MAX_CHANNEL_SIZE + " chars.");

paper-api/src/main/java/org/bukkit/plugin/messaging/ChannelNotRegisteredException.java

@@ -3,6 +3,7 @@ package org.bukkit.plugin.messaging;
 /**
  * Thrown if a Plugin attempts to send a message on an unregistered channel.
  */
+@SuppressWarnings("serial")
 public class ChannelNotRegisteredException extends RuntimeException {
     public ChannelNotRegisteredException() {
         this("Attempted to send a plugin message through an unregistered channel.");

paper-api/src/main/java/org/bukkit/plugin/messaging/MessageTooLargeException.java

@@ -3,6 +3,7 @@ package org.bukkit.plugin.messaging;
 /**
  * Thrown if a Plugin Message is sent that is too large to be sent.
  */
+@SuppressWarnings("serial")
 public class MessageTooLargeException extends RuntimeException {
     public MessageTooLargeException() {
         this("Attempted to send a plugin message that was too large. The maximum length a plugin message may be is " + Messenger.MAX_MESSAGE_SIZE + " bytes.");

paper-api/src/main/java/org/bukkit/plugin/messaging/ReservedChannelException.java

@@ -3,6 +3,7 @@ package org.bukkit.plugin.messaging;
 /**
  * Thrown if a plugin attempts to register for a reserved channel (such as "REGISTER")
  */
+@SuppressWarnings("serial")
 public class ReservedChannelException extends RuntimeException {
     public ReservedChannelException() {
         this("Attempted to register for a reserved channel name.");