diff --git a/src/framework/src/Timer.php b/src/framework/src/Timer.php
index 4043c6ae7..64740e102 100644
--- a/src/framework/src/Timer.php
+++ b/src/framework/src/Timer.php
@@ -22,7 +22,6 @@ class Timer
      * @param array ...$params
      *
      * @return int
-     * @throws Exception\SwoftException
      */
     public static function tick(int $msec, $callback, ...$params): int
     {
@@ -53,7 +52,6 @@ public static function tick(int $msec, $callback, ...$params): int
      * @param array ...$params
      *
      * @return int
-     * @throws Exception\SwoftException
      */
     public static function after(int $msec, $callback, ...$params): int
     {
@@ -124,7 +122,6 @@ public static function stats(): array
 
     /**
      * @return array
-     * @throws Exception\SwoftException
      */
     private static function getLogItems(): array
     {
@@ -141,7 +138,6 @@ private static function getLogItems(): array
     /**
      * @param array $items
      *
-     * @throws Exception\SwoftException
      */
     private static function initItems(array $items): void
     {
diff --git a/src/rpc-client/src/Connection.php b/src/rpc-client/src/Connection.php
index 1880c56fc..f1f66711a 100644
--- a/src/rpc-client/src/Connection.php
+++ b/src/rpc-client/src/Connection.php
@@ -143,11 +143,17 @@ public function recv()
     private function getHostPort(): array
     {
         $provider = $this->client->getProvider();
-        $list     = $provider->getList($this->client);
-        if (empty($provider) || !$provider instanceof ProviderInterface || empty($list)) {
+        if (empty($provider) || !$provider instanceof ProviderInterface) {
             return [$this->client->getHost(), $this->client->getPort()];
         }
 
+        $list = $provider->getList($this->client);
+        if (empty($list)) {
+            throw new RpcClientException(
+                sprintf('Provider return list can not empty!')
+            );
+        }
+
         if (!is_array($list)) {
             throw new RpcClientException(
                 sprintf('Provider(%s) return format is error!', JsonHelper::encode($list))