Generic cleanup of warnings, whitespace and style.

src/main/java/org/bukkit/event/entity/EntityCombustByBlockEvent.java

@@ -3,6 +3,7 @@ package org.bukkit.event.entity;
 import org.bukkit.block.Block;
 import org.bukkit.entity.Entity;
 
+@SuppressWarnings("serial")
 public class EntityCombustByBlockEvent extends EntityCombustEvent {
 
     private Block combuster;
@@ -16,6 +17,7 @@ public class EntityCombustByBlockEvent extends EntityCombustEvent {
      * The combuster can be lava or a block that is on fire.
      *
      * WARNING: block may be null.
+     *
      * @return the Block that set the combustee alight.
      */
     public Block getCombuster() {