Fix clear value for group instances toscaGetFunction

Issue-ID: SDC-4091
Signed-off-by: KrupaNagabhushan <krupa.nagabhushan@est.tech>
Change-Id: I93c3cf8eac9365eb8dcfde5ca6b87f6a2c643d01

1 files changed, 4 insertions, 2 deletions

diff --git a/catalog-model/src/main/java/org/openecomp/sdc/be/model/operations/impl/GroupOperation.java b/catalog-model/src/main/java/org/openecomp/sdc/be/model/operations/impl/GroupOperation.java
index caf1c4eaca..a57f32d336 100644
--- a/catalog-model/src/main/java/org/openecomp/sdc/be/model/operations/impl/GroupOperation.java
+++ b/catalog-model/src/main/java/org/openecomp/sdc/be/model/operations/impl/GroupOperation.java
@@ -501,8 +501,10 @@ public class GroupOperation extends AbstractOperation implements IGroupOperation
             }
         }
         if (result == null) {
-            String validValue = String.valueOf(isValid.left().value());
-            property.setValue(validValue);
+            if (isValid.left().value() != null) {
+                String validValue = String.valueOf(isValid.left().value());
+                property.setValue(validValue);
+            }
             result = StorageOperationStatus.OK;
         }
         return result;