Merge r1000235 TUSCANY-3037: Don't call setBody() if the message body hasn't changed

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1027070 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 3 insertions, 1 deletions

diff --git a/sca-java-1.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java b/sca-java-1.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java
index 79c442450b..61e2751a8a 100644
--- a/sca-java-1.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java
+++ b/sca-java-1.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java
@@ -87,7 +87,9 @@ public class DataTransformationInterceptor implements Interceptor, DataExchangeS
         } else {
             assert !(result instanceof Throwable) : "Expected messages that are not throwable " + result;
             Object newResult = mediator.mediateOutput(result, sourceOperation, targetOperation, metadata);
-            resultMsg.setBody(newResult);
+            if (newResult != result) {
+                resultMsg.setBody(newResult);
+            }
         }
 
         return resultMsg;