[Bleeding] Fix some return types that could lead to ArrayStoreException

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

@@ -41,8 +41,8 @@ public class CraftInventoryCrafting extends CraftInventory implements CraftingIn
     }
 
     @Override
-    public CraftItemStack[] getContents() {
-        CraftItemStack[] items = new CraftItemStack[getSize()];
+    public ItemStack[] getContents() {
+        ItemStack[] items = new ItemStack[getSize()];
         net.minecraft.server.ItemStack[] mcResultItems = getResultInventory().getContents();
 
         int i = 0;
@@ -85,7 +85,7 @@ public class CraftInventoryCrafting extends CraftInventory implements CraftingIn
     }
 
     public ItemStack[] getMatrix() {
-        CraftItemStack[] items = new CraftItemStack[getSize()];
+        ItemStack[] items = new ItemStack[getSize()];
         net.minecraft.server.ItemStack[] matrix = getMatrixInventory().getContents();
 
         for (int i = 0; i < matrix.length; i++ ) {

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

@@ -64,9 +64,9 @@ public class CraftInventoryPlayer extends CraftInventory implements org.bukkit.i
         setItem(getSize() + 0, boots);
     }
 
-    public CraftItemStack[] getArmorContents() {
+    public ItemStack[] getArmorContents() {
         net.minecraft.server.ItemStack[] mcItems = getInventory().getArmorContents();
-        CraftItemStack[] ret = new CraftItemStack[mcItems.length];
+        ItemStack[] ret = new ItemStack[mcItems.length];
 
         for (int i = 0; i < mcItems.length; i++) {
             ret[i] = new CraftItemStack(mcItems[i]);