dwa

probe/src/main/java/art/arcane/iris/probe/StubTileData.java

@@ -19,6 +19,7 @@ public final class StubTileData extends TileData {
     private static final Gson GSON = new GsonBuilder()
             .disableHtmlEscaping()
             .setStrictness(Strictness.LENIENT)
+            .setObjectToNumberStrategy(com.google.gson.ToNumberPolicy.LONG_OR_DOUBLE)
             .create();
 
     private final String blockKey;

probe/src/test/java/art/arcane/iris/probe/StubTileDataTest.java

@@ -32,6 +32,24 @@ public class StubTileDataTest {
         assertEquals("minecraft:chests/ancient_city", decoded.getProperties().get("LootTable"));
     }
 
+    @Test
+    public void modernIntegralPropertiesReencodeByteIdentical() throws Exception {
+        KMap<String, Object> properties = new KMap<>();
+        properties.put("LootTable", "minecraft:chests/ancient_city");
+        properties.put("LootTableSeed", -7205759403792793599L);
+        StubTileData original = StubTileData.fromProperties(
+                StubPlatform.blockStateForTest("minecraft:chest[facing=north]"), properties);
+        byte[] encoded = encode(original::toBinary);
+
+        StubTileData decoded;
+        try (DataInputStream input = new DataInputStream(new ByteArrayInputStream(encoded))) {
+            decoded = StubTileData.read(input);
+        }
+
+        assertArrayEquals(encoded, encode(decoded::toBinary));
+        assertEquals(-7205759403792793599L, decoded.getProperties().get("LootTableSeed"));
+    }
+
     @Test
     public void legacyLootablePayloadPreservesItsCompleteFrame() throws Exception {
         byte[] payload = encode(output -> {