SSDM-3112: fix null checks

SVN: 35611

openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/DataGlobalSearchBridge.java

@@ -14,7 +14,6 @@ public class DataGlobalSearchBridge<T extends DataPE> extends GlobalSearchBridge
         put(values, "Perm ID", data.getPermId());
         put(values, "Registration date", dateFormat.format(data.getRegistrationDate()));
         put(values, "Modification date", dateFormat.format(data.getModificationDate()));
-        put(values, "Access date", dateFormat.format(data.getAccessDate()));
         put(values, "DataSet type", data.getDataSetType().getCode());
         addProperties(values, data.getProperties());
         addPerson(values, "registrator", data.getRegistrator());

openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/GlobalSearchBridge.java

@@ -160,7 +160,7 @@ public abstract class GlobalSearchBridge<T extends IEntityWithMetaprojects> impl
             List<String> indexedValues = new ArrayList<>();
             for (Map.Entry<String, IndexedValue> entry : data.entrySet())
             {
-                if (entry.getValue() == null)
+                if (entry.getValue().displayValue == null)
                 {
                     continue;
                 }