diff --git a/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/web/bpmn/BpmnProcessInstanceController.java b/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/web/bpmn/BpmnProcessInstanceController.java
index bbe516fd8..4d8bb8002 100644
--- a/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/web/bpmn/BpmnProcessInstanceController.java
+++ b/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/web/bpmn/BpmnProcessInstanceController.java
@@ -77,7 +77,6 @@ import javax.annotation.Nullable;
 import javax.annotation.Resource;
 import javax.validation.constraints.NotBlank;
 import javax.validation.constraints.NotNull;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -179,11 +178,6 @@ public class BpmnProcessInstanceController extends BasicPopulateAvatarController
         return success(bpmnProcessInstanceService.createProcessInstance(dto));
     }
 
-    public static void main(String[] args) {
-        Map<String, List<BpmnTaskDelegateAssigner>> map = new HashMap<>();
-        List<BpmnTaskDelegateAssigner> collect = map.entrySet().stream().flatMap(e -> e.getValue().stream().filter(Objects::nonNull)).collect(Collectors.toList());
-    }
-
     /**
      * 撤回流程实例
      *