Add sanity check in 1.13->1.12 enchantment handler

Closes #2908
ViaVersion · Jun 3, 2022 · 9da206e · 9da206e
1 parent c2ae3df
commit 9da206e
Showing 1 changed file with 9 additions and 2 deletions.
diff --git a/...m/viaversion/viabackwards/protocol/protocol1_12_2to1_13/packets/BlockItemPackets1_13.java b/...m/viaversion/viabackwards/protocol/protocol1_12_2to1_13/packets/BlockItemPackets1_13.java
@@ -653,10 +653,17 @@ private void rewriteEnchantmentsToClient(CompoundTag tag, boolean storedEnch) {
         for (Tag enchantmentEntryTag : enchantments.clone()) {
             CompoundTag enchantmentEntry = (CompoundTag) enchantmentEntryTag;
             Tag idTag = enchantmentEntry.get("id");
-            if (!(idTag instanceof StringTag)) continue;
+            if (!(idTag instanceof StringTag)) {
+                continue;
+            }
 
             String newId = (String) idTag.getValue();
-            int levelValue = ((NumberTag) enchantmentEntry.get("lvl")).asInt();
+            NumberTag levelTag = enchantmentEntry.get("lvl");
+            if (levelTag == null) {
+                continue;
+            }
+
+            int levelValue = levelTag.asInt();
             short level = levelValue < Short.MAX_VALUE ? (short) levelValue : Short.MAX_VALUE;
 
             String mappedEnchantmentId = enchantmentMappings.get(newId);