From 12b96ae50574a9fa8d68809cc694e22c3e0369c2 Mon Sep 17 00:00:00 2001
From: "a.amir" <>
Date: Wed, 10 Sep 2025 15:21:12 +0200
Subject: [PATCH] fix: check a file has content before proccess

---
 .../json_cache_info_repository.dart           |  3 ++-
 .../json_file_repository_test.dart            | 20 +++++++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/flutter_cache_manager/lib/src/storage/cache_info_repositories/json_cache_info_repository.dart b/flutter_cache_manager/lib/src/storage/cache_info_repositories/json_cache_info_repository.dart
index e8ee293f..1cfdc5b0 100644
--- a/flutter_cache_manager/lib/src/storage/cache_info_repositories/json_cache_info_repository.dart
+++ b/flutter_cache_manager/lib/src/storage/cache_info_repositories/json_cache_info_repository.dart
@@ -135,7 +135,8 @@ class JsonCacheInfoRepository extends CacheInfoRepository
   Future<void> _readFile(File file) async {
     _cacheObjects.clear();
     _jsonCache.clear();
-    if (await file.exists()) {
+    final hasContent =  await file.length() > 0;
+    if (await file.exists() && hasContent) {
       try {
         final jsonString = await file.readAsString();
         final json = jsonDecode(jsonString) as List<dynamic>;
diff --git a/flutter_cache_manager/test/repositories/json_file_repository_test.dart b/flutter_cache_manager/test/repositories/json_file_repository_test.dart
index 941738f5..e920a431 100644
--- a/flutter_cache_manager/test/repositories/json_file_repository_test.dart
+++ b/flutter_cache_manager/test/repositories/json_file_repository_test.dart
@@ -57,6 +57,26 @@ void main() {
     });
   });
 
+  test('Open repository should not report error when file is empty',
+          () async {
+        final originalOnError = FlutterError.onError;
+        FlutterError.onError = (FlutterErrorDetails details) {
+          throw details.exception;
+        };
+
+        final tempFile = File('${Directory.systemTemp.path}/test_empty.json');
+        await tempFile.create();
+        expect(await tempFile.length(), 0);
+
+        final repository = JsonCacheInfoRepository.withFile(tempFile);
+        await repository.open();
+
+        expect(await repository.getAllObjects(), isEmpty);
+
+        await tempFile.delete();
+        FlutterError.onError = originalOnError;
+  });
+
   group('Exist and delete', () {
     test('New repository does not exist', () async {
       var repository = JsonCacheInfoRepository.withFile(File(path));