diff --git a/src/main/java/cn/langpy/kotime/service/JvmAttachClassService.java b/src/main/java/cn/langpy/kotime/service/JvmAttachClassService.java
index 23aa938..d76ed30 100644
--- a/src/main/java/cn/langpy/kotime/service/JvmAttachClassService.java
+++ b/src/main/java/cn/langpy/kotime/service/JvmAttachClassService.java
@@ -36,6 +36,7 @@ public class JvmAttachClassService implements ClassService{
             log.severe("Fail to update class:" + className);
         } catch (InterruptedException e) {
             e.printStackTrace();
+            log.severe("Fail to update class:" + className);
         }
     }