Renamed ItemStack.set/getDamage to durability, which is now a short

src/main/java/org/bukkit/craftbukkit/CraftWorld.java

@@ -125,7 +125,7 @@ public class CraftWorld implements World {
         net.minecraft.server.ItemStack stack = new net.minecraft.server.ItemStack(
             item.getTypeId(),
             item.getAmount(),
-            item.getDamage()
+            item.getDurability()
         );
         EntityItem entity = new EntityItem(world, loc.getX(), loc.getY(), loc.getZ(), stack);
         entity.c = 10;

src/main/java/org/bukkit/craftbukkit/inventory/CraftInventory.java

@@ -53,13 +53,13 @@ public class CraftInventory implements org.bukkit.inventory.Inventory {
             if (item == null || item.getTypeId() <= 0) {
                 mcItems[i] = null;
             } else {
-                mcItems[i] = new net.minecraft.server.ItemStack( item.getTypeId(), item.getAmount(), item.getDamage());
+                mcItems[i] = new net.minecraft.server.ItemStack( item.getTypeId(), item.getAmount(), item.getDurability());
             }
         }
     }
 
     public void setItem(int index, ItemStack item) {
-        getInventory().a(index, (item == null ? null : new net.minecraft.server.ItemStack( item.getTypeId(), item.getAmount(), item.getDamage())));
+        getInventory().a(index, (item == null ? null : new net.minecraft.server.ItemStack( item.getTypeId(), item.getAmount(), item.getDurability())));
     }
 
     public boolean contains(int materialId) {

src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java

@@ -10,7 +10,7 @@ public class CraftItemStack extends ItemStack {
         super(
             item != null ? item.id: 0,
             item != null ? item.count : 0,
-            (byte)(item != null ? item.damage : 0)
+            (short)(item != null ? item.damage : 0)
         );
         this.item = item;
     }
@@ -101,21 +101,21 @@ public class CraftItemStack extends ItemStack {
     }
 
     @Override
-    public void setDamage(final byte damage) {
+    public void setDurability(final short durability) {
         // Ignore damage if item is null
         if (item != null) {
-            super.setDamage(damage);
-            item.damage = damage;
+            super.setDurability(durability);
+            item.damage = durability;
         } 
     }
 
     @Override
-    public byte getDamage() {
+    public short getDurability() {
         if (item != null) {
-            super.setDamage((byte) item.damage); // sync, needed?    
-            return (byte) item.damage;
+            super.setDurability((short) item.damage); // sync, needed?
+            return (short) item.damage;
         } else {
-            return 0;
+            return -1;
         }
     }