ForgePatch/patches/minecraft/net/minecraft/item/ArmorItem.java.patch

--- a/net/minecraft/item/ArmorItem.java
+++ b/net/minecraft/item/ArmorItem.java
@@ -104,4 +104,8 @@
    public int func_200881_e() {
       return this.field_77879_b;
    }
+
+   public float getToughness() {
+      return this.field_189415_e;
+   }
 }