diff --git a/android/sdk/src/main/jni/src/bridge/entry.cc b/android/sdk/src/main/jni/src/bridge/entry.cc
index d4212a1fa..8c1f20be7 100644
--- a/android/sdk/src/main/jni/src/bridge/entry.cc
+++ b/android/sdk/src/main/jni/src/bridge/entry.cc
@@ -133,6 +133,7 @@ bool RunScript(std::shared_ptr<Runtime> runtime,
                       << ", uri = " << uri
                       << ", asset_manager = " << asset_manager;
   unicode_string_view script_content;
+  bool read_script_flag;
   unicode_string_view code_cache_content;
   uint64_t modify_time = 0;
 
@@ -180,20 +181,28 @@ bool RunScript(std::shared_ptr<Runtime> runtime,
     task_runner = engine->GetWorkerTaskRunner();
     task_runner->PostTask(std::move(task));
     u8string content;
-    runtime->GetScope()->GetUriLoader()->RequestUntrustedContent(uri, content);
-    script_content = unicode_string_view(std::move(content));
+    read_script_flag = runtime->GetScope()->GetUriLoader()
+        ->RequestUntrustedContent(uri, content);
+    if (read_script_flag) {
+      script_content = unicode_string_view(std::move(content));
+    }
     code_cache_content = read_file_future.get();
   } else {
     u8string content;
-    runtime->GetScope()->GetUriLoader()->RequestUntrustedContent(uri, content);
-    script_content = unicode_string_view(std::move(content));
+    read_script_flag = runtime->GetScope()->GetUriLoader()
+        ->RequestUntrustedContent(uri, content);
+    if (read_script_flag) {
+      script_content = unicode_string_view(std::move(content));
+    }
   }
 
   TDF_BASE_DLOG(INFO) << "uri = " << uri
+                      << "read_script_flag = " << read_script_flag
                       << ", script content = " << script_content;
 
-  if (StringViewUtils::IsEmpty(script_content)) {
-    TDF_BASE_LOG(WARNING) << "script content empty, uri = " << uri;
+  if (!read_script_flag || StringViewUtils::IsEmpty(script_content)) {
+    TDF_BASE_LOG(WARNING) << "read_script_flag = " << read_script_flag
+                          << ", script content empty, uri = " << uri;
     return false;
   }
 
@@ -260,7 +269,10 @@ jboolean RunScriptFromUri(JNIEnv* j_env,
                         std::chrono::system_clock::now())
                         .time_since_epoch()
                         .count();
-
+  if (!j_uri) {
+    TDF_BASE_DLOG(WARNING) << "HippyBridgeImpl runScriptFromUri, j_uri invalid";
+    return false;
+  }
   const unicode_string_view uri = JniUtils::ToStrView(j_env, j_uri);
   const unicode_string_view code_cache_dir =
       JniUtils::ToStrView(j_env, j_code_cache_dir);
diff --git a/android/sdk/src/main/jni/src/bridge/java2js.cc b/android/sdk/src/main/jni/src/bridge/java2js.cc
index 264ae019e..bf2ab2afe 100644
--- a/android/sdk/src/main/jni/src/bridge/java2js.cc
+++ b/android/sdk/src/main/jni/src/bridge/java2js.cc
@@ -74,9 +74,12 @@ void CallFunction(JNIEnv* j_env,
     TDF_BASE_DLOG(WARNING) << "CallFunction j_runtime_id invalid";
     return;
   }
-
   std::shared_ptr<JavaScriptTaskRunner> runner =
       runtime->GetEngine()->GetJSRunner();
+  if (!j_action) {
+    TDF_BASE_DLOG(WARNING) << "CallFunction j_action invalid";
+    return;
+  }
   unicode_string_view action_name = JniUtils::ToStrView(j_env, j_action);
   std::shared_ptr<JavaRef> cb = std::make_shared<JavaRef>(j_env, j_callback);
   std::shared_ptr<JavaScriptTask> task = std::make_shared<JavaScriptTask>();
diff --git a/android/sdk/src/main/jni/src/jni/uri.cc b/android/sdk/src/main/jni/src/jni/uri.cc
index 63e23856a..9c64c2533 100644
--- a/android/sdk/src/main/jni/src/jni/uri.cc
+++ b/android/sdk/src/main/jni/src/jni/uri.cc
@@ -103,6 +103,9 @@ unicode_string_view Uri::Normalize() {
       (jstring)j_env->CallObjectMethod(j_obj_uri_, j_normalize_method_id);
   jstring j_parsed_uri =
       (jstring)j_env->CallObjectMethod(j_normalize_uri, j_to_string_method_id);
+  if (!j_parsed_uri)  {
+    return u"";
+  }
   unicode_string_view ret = JniUtils::ToStrView(j_env, j_parsed_uri);
   j_env->DeleteLocalRef(j_parsed_uri);
   j_env->DeleteLocalRef(j_normalize_uri);
@@ -114,6 +117,9 @@ unicode_string_view Uri::GetScheme() {
   JNIEnv* j_env = JNIEnvironment::GetInstance()->AttachCurrentThread();
   jstring j_scheme =
       (jstring)j_env->CallObjectMethod(j_obj_uri_, j_get_scheme_method_id);
+  if (!j_scheme) {
+    return u"";
+  }
   unicode_string_view ret = JniUtils::ToStrView(j_env, j_scheme);
   j_env->DeleteLocalRef(j_scheme);
   return ret;
@@ -124,6 +130,9 @@ unicode_string_view Uri::GetPath() {
   JNIEnv* j_env = JNIEnvironment::GetInstance()->AttachCurrentThread();
   jstring j_path =
       (jstring)j_env->CallObjectMethod(j_obj_uri_, j_get_path_method_id);
+  if (!j_path) {
+    return u"";
+  }
   unicode_string_view ret = JniUtils::ToStrView(j_env, j_path);
   j_env->DeleteLocalRef(j_path);
   return ret;
diff --git a/android/sdk/src/main/jni/src/loader/adr_loader.cc b/android/sdk/src/main/jni/src/loader/adr_loader.cc
index 7ec27004e..b6d61414c 100644
--- a/android/sdk/src/main/jni/src/loader/adr_loader.cc
+++ b/android/sdk/src/main/jni/src/loader/adr_loader.cc
@@ -51,7 +51,17 @@ bool ADRLoader::RequestUntrustedContent(const unicode_string_view& uri,
     return false;
   }
   unicode_string_view schema = uri_obj->GetScheme();
+  if (StringViewUtils::IsEmpty(schema)) {
+    TDF_BASE_DLOG(ERROR) << "schema error, uri = " << uri;
+    cb(u8string());
+    return false;
+  }
   unicode_string_view path = uri_obj->GetPath();
+  if (StringViewUtils::IsEmpty(path)) {
+    TDF_BASE_DLOG(ERROR) << "path error, uri = " << uri;
+    cb(u8string());
+    return false;
+  }
   TDF_BASE_DCHECK(schema.encoding() == unicode_string_view::Encoding::Utf16);
   std::u16string schema_str = schema.utf16_value();
   if (schema_str == u"file") {
@@ -78,10 +88,18 @@ bool ADRLoader::RequestUntrustedContent(const unicode_string_view& uri,
   std::shared_ptr<Uri> uri_obj = Uri::Create(uri);
   if (!uri_obj) {
     TDF_BASE_DLOG(ERROR) << "uri error, uri = " << uri;
-    return "";
+    return false;
   }
   unicode_string_view schema = uri_obj->GetScheme();
+  if (StringViewUtils::IsEmpty(schema)) {
+    TDF_BASE_DLOG(ERROR) << "schema error, uri = " << uri;
+    return false;
+  }
   unicode_string_view path = uri_obj->GetPath();
+  if (StringViewUtils::IsEmpty(path)) {
+    TDF_BASE_DLOG(ERROR) << "path error, uri = " << uri;
+    return false;
+  }
   TDF_BASE_DCHECK(schema.encoding() == unicode_string_view::Encoding::Utf16);
   std::u16string schema_str = schema.utf16_value();
   if (schema_str == u"file") {
@@ -103,10 +121,10 @@ bool ADRLoader::RequestUntrustedContent(const unicode_string_view& uri,
     }
 
     TDF_BASE_DLOG(ERROR) << "aasset_manager error, uri = " << uri;
-    return "";
+    return false;
   } else {
     TDF_BASE_DLOG(ERROR) << "schema error, schema = " << schema;
-    return "";
+    return false;
   }
 }