diff --git a/src/main/java/com/loafle/commons/rpc/protocol/json/JSONRPCClientNotificationCodec.java b/src/main/java/com/loafle/commons/rpc/protocol/json/JSONRPCClientNotificationCodec.java
index 8c01e00..173c7fc 100644
--- a/src/main/java/com/loafle/commons/rpc/protocol/json/JSONRPCClientNotificationCodec.java
+++ b/src/main/java/com/loafle/commons/rpc/protocol/json/JSONRPCClientNotificationCodec.java
@@ -52,15 +52,16 @@ public class JSONRPCClientNotificationCodec implements RPCClientNotificationCode
       Type paramType = paramTypes[i];
       String param = this.notification.params.get(i);
 
-      JavaType targetType = objectMapper.getTypeFactory().constructType(paramType);
-      if (!Primitives.isPrimitive(paramType) && !paramType.getTypeName().equals(String.class.getName())) {
-        try {
+      try {
+        JavaType targetType = objectMapper.getTypeFactory().constructType(paramType);
+        if (!Primitives.isPrimitive(paramType) && !paramType.getTypeName().equals(String.class.getName())) {
           result[i] = objectMapper.readValue(param, targetType);
-        } catch (IOException e) {
-          throw new IllegalArgumentException();
+        } else {
+          result[i] = objectMapper.convertValue(param, targetType);
         }
+      } catch (IOException e) {
+        throw new IllegalArgumentException();
       }
-      result[i] = objectMapper.convertValue(param, targetType);
     }
 
     return result;