Allow corrupt JSONs when scanning models for textures

Fixes Hexerei textures being missing on 1.18

Author: embeddedt

common/src/main/java/org/embeddedt/modernfix/dynamicresources/ModelBakeryHelpers.java

@@ -5,6 +5,7 @@
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Sets;
 import com.google.gson.*;
+import com.google.gson.stream.JsonReader;
 import com.mojang.datafixers.util.Pair;
 import it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap;
 import it.unimi.dsi.fastutil.objects.ObjectOpenHashSet;
@@ -55,6 +56,13 @@ public class ModelBakeryHelpers {
      */
     public static final int MAX_MODEL_LIFETIME_SECS = 300;
 
+    private static JsonElement parseStream(InputStream stream) {
+        JsonParser parser = new JsonParser();
+        JsonReader jsonReader = new JsonReader(new InputStreamReader(stream, StandardCharsets.UTF_8));
+        jsonReader.setLenient(true);
+        return parser.parse(jsonReader);
+    }
+
     private static void gatherAdditionalViaManualScan(List<PackResources> untrustedPacks, Set<ResourceLocation> knownLocations,
                                                Collection<ResourceLocation> uncertainLocations, String filePrefix) {
         if(untrustedPacks.size() > 0) {
@@ -166,9 +174,8 @@ public static void gatherModelMaterials(ResourceManager manager, Predicate<PackR
             blockStateData.add(CompletableFuture.runAsync(() -> {
                 try {
                     for(Resource resource : resources) {
-                        JsonParser parser = new JsonParser();
                         try {
-                            blockStateLoadedFiles.add(Pair.of(blockstate, parser.parse(new InputStreamReader(resource.getInputStream(), StandardCharsets.UTF_8))));
+                            blockStateLoadedFiles.add(Pair.of(blockstate, parseStream(resource.getInputStream())));
                         } catch(JsonParseException e) {
                             logOrSuppressError(blockstateErrors, "blockstate", blockstate, e);
                         } finally {
@@ -257,8 +264,7 @@ public static void gatherModelMaterials(ResourceManager manager, Predicate<PackR
                 ResourceLocation fileLocation = new ResourceLocation(model.getNamespace(), "models/" + model.getPath() + ".json");
                 modelBytes.add(CompletableFuture.supplyAsync(() -> {
                     try(Resource resource = manager.getResource(fileLocation)) {
-                        JsonParser parser = new JsonParser();
-                        return Pair.of(model, parser.parse(new InputStreamReader(resource.getInputStream(), StandardCharsets.UTF_8)));
+                        return Pair.of(model, parseStream(resource.getInputStream()));
                     } catch(IOException | JsonParseException e) {
                         logOrSuppressError(blockstateErrors, "model", fileLocation, e);
                         return Pair.of(fileLocation, null);