Generic cleanup of warnings, whitespace and style.

src/main/java/org/bukkit/event/world/ChunkEvent.java

@@ -5,6 +5,7 @@ import org.bukkit.Chunk;
 /**
  * Represents a Chunk related event
  */
+@SuppressWarnings("serial")
 public class ChunkEvent extends WorldEvent {
     protected Chunk chunk;
 

src/main/java/org/bukkit/event/world/ChunkLoadEvent.java

@@ -5,6 +5,7 @@ import org.bukkit.Chunk;
 /**
  * Called when a chunk is loaded
  */
+@SuppressWarnings("serial")
 public class ChunkLoadEvent extends ChunkEvent {
     private final boolean newChunk;
 

src/main/java/org/bukkit/event/world/ChunkPopulateEvent.java

@@ -8,6 +8,7 @@ import org.bukkit.generator.BlockPopulator;
  *
  * If your intent is to populate the chunk using this event, please see {@link BlockPopulator}
  */
+@SuppressWarnings("serial")
 public class ChunkPopulateEvent extends ChunkEvent {
     public ChunkPopulateEvent(final Chunk chunk) {
         super(Type.CHUNK_POPULATED, chunk);

src/main/java/org/bukkit/event/world/ChunkUnloadEvent.java

@@ -6,6 +6,7 @@ import org.bukkit.event.Cancellable;
 /**
  * Called when a chunk is unloaded
  */
+@SuppressWarnings("serial")
 public class ChunkUnloadEvent extends ChunkEvent implements Cancellable {
     private boolean cancel = false;
 

src/main/java/org/bukkit/event/world/PortalCreateEvent.java

@@ -9,6 +9,7 @@ import java.util.Collection;
 /**
  * Called when the world attempts to create a matching end to a portal
  */
+@SuppressWarnings("serial")
 public class PortalCreateEvent extends WorldEvent implements Cancellable {
     private boolean cancel = false;
     private ArrayList<Block> blocks = new ArrayList<Block>();

src/main/java/org/bukkit/event/world/SpawnChangeEvent.java

@@ -7,6 +7,7 @@ import org.bukkit.Location;
  * An event that is called when a world's spawn changes. The
  * world's previous spawn location is included.
  */
+@SuppressWarnings("serial")
 public class SpawnChangeEvent extends WorldEvent {
     private Location previousLocation;
 

src/main/java/org/bukkit/event/world/StructureGrowEvent.java

@@ -47,7 +47,7 @@ public class StructureGrowEvent extends WorldEvent implements Cancellable {
     }
 
     /**
-     * Checks if structure  was grown using bonemeal.
+     * Checks if structure was grown using bonemeal.
      *
      * @return True if the structure was grown using bonemeal.
      */

src/main/java/org/bukkit/event/world/WorldEvent.java

@@ -6,6 +6,7 @@ import org.bukkit.event.Event;
 /**
  * Represents events within a world
  */
+@SuppressWarnings("serial")
 public class WorldEvent extends Event {
     private final World world;
 

src/main/java/org/bukkit/event/world/WorldInitEvent.java

@@ -5,6 +5,7 @@ import org.bukkit.World;
 /**
  * Called when a World is initializing
  */
+@SuppressWarnings("serial")
 public class WorldInitEvent extends WorldEvent {
     public WorldInitEvent(World world) {
         super(Type.WORLD_INIT, world);

src/main/java/org/bukkit/event/world/WorldLoadEvent.java

@@ -5,6 +5,7 @@ import org.bukkit.World;
 /**
  * Called when a World is loaded
  */
+@SuppressWarnings("serial")
 public class WorldLoadEvent extends WorldEvent {
     public WorldLoadEvent(World world) {
         super(Type.WORLD_LOAD, world);

src/main/java/org/bukkit/event/world/WorldSaveEvent.java

@@ -2,6 +2,7 @@ package org.bukkit.event.world;
 
 import org.bukkit.World;
 
+@SuppressWarnings("serial")
 public class WorldSaveEvent extends WorldEvent {
     public WorldSaveEvent(World world) {
         super(Type.WORLD_SAVE, world);

src/main/java/org/bukkit/event/world/WorldUnloadEvent.java

@@ -6,6 +6,7 @@ import org.bukkit.event.Cancellable;
 /**
  * Called when a World is unloaded
  */
+@SuppressWarnings("serial")
 public class WorldUnloadEvent extends WorldEvent implements Cancellable {
     private boolean isCancelled;