1 files changed, 8 insertions, 0 deletions
diff --git a/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/DataBindingJAXRSWriter.java b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/DataBindingJAXRSWriter.java
index 4ee1ff8c92..6064d23b1e 100644
--- a/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/DataBindingJAXRSWriter.java
+++ b/sca-java-2.x/trunk/modules/binding-rest-runtime/src/main/java/org/apache/tuscany/sca/binding/rest/provider/DataBindingJAXRSWriter.java
@@ -120,8 +120,16 @@ public class DataBindingJAXRSWriter<T> extends DataBindingJAXRSProvider implemen
                 Set<String> fieldSet = tokenize(fields);
                 for (String f : fieldSet) {
                     if (f.startsWith("-")) {
+                        if (excludedFields == null) {
+                            excludedFields = new HashSet<String>();
+                            metadata.put(EXCLUDED_FIELDS, excludedFields);
+                        }
                         excludedFields.add(f.substring(1));
                     } else {
+                        if (includedFields == null) {
+                            includedFields = new HashSet<String>();
+                            metadata.put(INCLUDED_FIELDS, includedFields);
+                        }
                         includedFields.add(f);
                     }
                 }