diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/JobHandler.java b/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/JobHandler.java
index c79422b..5fdef69 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/JobHandler.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/JobHandler.java
@@ -19,6 +19,6 @@
 @Deprecated
 public @interface JobHandler {
 
-    String value() default "";
+    String value();
 
 }

diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/JobHandler.java b/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/JobHandler.java
index c79422b..5fdef69 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/JobHandler.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/JobHandler.java
@@ -19,6 +19,6 @@
 @Deprecated
 public @interface JobHandler {
 
-    String value() default "";
+    String value();
 
 }
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/XxlJob.java b/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/XxlJob.java
index b28eab5..33fb675 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/XxlJob.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/handler/annotation/XxlJob.java
@@ -15,7 +15,7 @@
     /**
      * jobhandler name
      */
-    String value() default "";
+    String value();
 
     /**
      * init handler, invoked when JobThread init