diff --git a/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/delegate/AbstractBpmnTaskAssigneeSelector.java b/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/delegate/AbstractBpmnTaskAssigneeSelector.java
index 4fd606380..dec1a028d 100644
--- a/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/delegate/AbstractBpmnTaskAssigneeSelector.java
+++ b/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/delegate/AbstractBpmnTaskAssigneeSelector.java
@@ -43,11 +43,6 @@ public abstract class AbstractBpmnTaskAssigneeSelector implements BpmnTaskAssign
     private ApplicationContext applicationContext;
     private EngineExecutionStartListener executionStartListener;
 
-    public AbstractBpmnTaskAssigneeSelector() {
-        executionStartListener = applicationContext.getBean(EngineExecutionStartListener.class);
-        log.info("apiTimeOut: {}", executionStartListener.getApiTimeout());
-    }
-
     @Override
     public List<BpmnTaskDelegateAssigner> select(UserTask userTask, DelegateExecution execution,
                                                  Boolean throwException) {
@@ -126,5 +121,7 @@ public abstract class AbstractBpmnTaskAssigneeSelector implements BpmnTaskAssign
     @Override
     public void setApplicationContext(ApplicationContext context) throws BeansException {
         this.applicationContext = context;
+        executionStartListener = applicationContext.getBean(EngineExecutionStartListener.class);
+        log.info("apiTimeOut: {}", executionStartListener.getApiTimeout());
     }
 }