diff --git a/datagear-dataexchange/src/main/java/org/datagear/dataexchange/BatchDataExchangeListener.java b/datagear-dataexchange/src/main/java/org/datagear/dataexchange/BatchDataExchangeListener.java
index ebfdff3c..55d263ad 100644
--- a/datagear-dataexchange/src/main/java/org/datagear/dataexchange/BatchDataExchangeListener.java
+++ b/datagear-dataexchange/src/main/java/org/datagear/dataexchange/BatchDataExchangeListener.java
@@ -23,6 +23,7 @@ public interface BatchDataExchangeListener extends DataExchangeListener
 	 * 子数据交换提交失败。
 	 * 
 	 * @param subDataExchange
+	 * @param cause
 	 */
 	void onSubmitFail(SubDataExchange subDataExchange);
 
diff --git a/datagear-dataexchange/src/main/java/org/datagear/dataexchange/BatchDataExchangeService.java b/datagear-dataexchange/src/main/java/org/datagear/dataexchange/BatchDataExchangeService.java
index 54e76123..fe7a4b3c 100644
--- a/datagear-dataexchange/src/main/java/org/datagear/dataexchange/BatchDataExchangeService.java
+++ b/datagear-dataexchange/src/main/java/org/datagear/dataexchange/BatchDataExchangeService.java
@@ -9,7 +9,6 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 
 import org.datagear.dataexchange.support.AbstractDevotedDataExchangeService;
-import org.datagear.dataexchange.support.DefaultBatchDataExchangeContext;
 
 /**
  * 批量数据交换服务。
diff --git a/datagear-dataexchange/src/main/java/org/datagear/dataexchange/support/DefaultBatchDataExchangeContext.java b/datagear-dataexchange/src/main/java/org/datagear/dataexchange/DefaultBatchDataExchangeContext.java
similarity index 93%
rename from datagear-dataexchange/src/main/java/org/datagear/dataexchange/support/DefaultBatchDataExchangeContext.java
rename to datagear-dataexchange/src/main/java/org/datagear/dataexchange/DefaultBatchDataExchangeContext.java
index 45449bea..384a7dea 100644
--- a/datagear-dataexchange/src/main/java/org/datagear/dataexchange/support/DefaultBatchDataExchangeContext.java
+++ b/datagear-dataexchange/src/main/java/org/datagear/dataexchange/DefaultBatchDataExchangeContext.java
@@ -2,7 +2,7 @@
  * Copyright (c) 2018 datagear.org. All Rights Reserved.
  */
 
-package org.datagear.dataexchange.support;
+package org.datagear.dataexchange;
 
 import java.util.HashSet;
 import java.util.Iterator;
@@ -12,11 +12,6 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.FutureTask;
 import java.util.concurrent.atomic.AtomicBoolean;
 
-import org.datagear.dataexchange.BatchDataExchangeContext;
-import org.datagear.dataexchange.BatchDataExchangeListener;
-import org.datagear.dataexchange.DataExchange;
-import org.datagear.dataexchange.DataExchangeService;
-import org.datagear.dataexchange.SubDataExchange;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;