Generic cleanup of warnings, whitespace and style.

src/main/java/org/bukkit/event/inventory/FurnaceBurnEvent.java

@@ -4,9 +4,11 @@ import org.bukkit.block.Block;
 import org.bukkit.event.Cancellable;
 import org.bukkit.event.Event;
 import org.bukkit.inventory.ItemStack;
+
 /**
  * Called when an ItemStack is successfully burned as fuel in a furnace.
  */
+@SuppressWarnings("serial")
 public class FurnaceBurnEvent extends Event implements Cancellable {
     private Block furnace;
     private ItemStack fuel;

src/main/java/org/bukkit/event/inventory/FurnaceSmeltEvent.java

@@ -8,7 +8,8 @@ import org.bukkit.inventory.ItemStack;
 /**
  * Called when an ItemStack is successfully smelted in a furnace.
  */
-public class FurnaceSmeltEvent extends Event implements Cancellable{
+@SuppressWarnings("serial")
+public class FurnaceSmeltEvent extends Event implements Cancellable {
     private Block furnace;
     private ItemStack source;
     private ItemStack result;
@@ -56,7 +57,7 @@ public class FurnaceSmeltEvent extends Event implements Cancellable{
      * @param result new result ItemStack
      */
     public void setResult(ItemStack result) {
-         this.result = result;
+        this.result = result;
     }
 
     public boolean isCancelled() {

src/main/java/org/bukkit/event/inventory/InventoryListener.java

@@ -1,8 +1,9 @@
 package org.bukkit.event.inventory;
 
 import org.bukkit.event.Listener;
+
 /**
-* Handles all events thrown in relation to Blocks
+ * Handles all events thrown in relation to Blocks
  */
 public class InventoryListener implements Listener {
     public InventoryListener() {}