diff --git a/spring-integration-core/src/main/java/org/springframework/integration/history/MessageHistory.java b/spring-integration-core/src/main/java/org/springframework/integration/history/MessageHistory.java index 051fd034a0..106b93ac4d 100644 --- a/spring-integration-core/src/main/java/org/springframework/integration/history/MessageHistory.java +++ b/spring-integration-core/src/main/java/org/springframework/integration/history/MessageHistory.java @@ -16,6 +16,7 @@ package org.springframework.integration.history; +import java.io.Serializable; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; @@ -35,7 +36,7 @@ import org.springframework.util.StringUtils; * @author Mark Fisher * @since 2.0 */ -public class MessageHistory implements List { +public class MessageHistory implements List, Serializable { public static final String HEADER_NAME = MessageHeaders.PREFIX + "history";