Added private static final UID

By: durron597 <martin.jared@gmail.com>

paper-api/src/org/bukkit/event/EventException.java

@@ -1,6 +1,7 @@
 package org.bukkit.event;
 
 public class EventException extends Exception {
+	private static final long serialVersionUID = 3532808232324183999L;
 	private final Throwable cause;
 
     /**

paper-api/src/org/bukkit/plugin/InvalidDescriptionException.java

@@ -5,6 +5,7 @@ package org.bukkit.plugin;
  * Thrown when attempting to load an invalid PluginDescriptionFile
  */
 public class InvalidDescriptionException extends Exception {
+	private static final long serialVersionUID = 5721389122281775894L;
 	private final Throwable cause;
 
     /**

paper-api/src/org/bukkit/plugin/InvalidPluginException.java

@@ -5,6 +5,7 @@ package org.bukkit.plugin;
  * Thrown when attempting to load an invalid Plugin file
  */
 public class InvalidPluginException extends Exception {
+	private static final long serialVersionUID = -8242141640709409542L;
 	private final Throwable cause;
 
     /**