1 files changed, 5 insertions, 1 deletions
diff --git a/sca-java-2.x/trunk/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/Node2JAXB.java b/sca-java-2.x/trunk/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/Node2JAXB.java
index e6fc1b4405..5070d0636c 100644
--- a/sca-java-2.x/trunk/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/Node2JAXB.java
+++ b/sca-java-2.x/trunk/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/Node2JAXB.java
@@ -45,7 +45,11 @@ public class Node2JAXB extends BaseTransformer<Node, Object> implements PullTran
         try {
             JAXBContext jaxbContext = contextHelper.createJAXBContext(context, false);
             Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
-            Object result = unmarshaller.unmarshal(source, JAXBContextHelper.getJavaType(context.getTargetDataType()));
+            Object result;
+            // TUSCANY-3971
+            synchronized(source){
+                result = unmarshaller.unmarshal(source, JAXBContextHelper.getJavaType(context.getTargetDataType()));
+            }
             return JAXBContextHelper.createReturnValue(jaxbContext, context.getTargetDataType(), result);
         } catch (Exception e) {
             throw new TransformationException(e);