Group Operations portlet fails to load with error "Failure in datasource while processing FETCH request" when JON is using Oracle

Issue

• Failure in datasource in group view
• Failure in datasource while processing FETCH request
• com.google.gwt.core.client.JavaScriptException:(TypeError): Cannot read property 'length' of null

• Message center shows the following error after opening a group's summary page:

  Failure in datasource while processing FETCH request.
  
  com.google.gwt.core.client.JavaScriptException:(TypeError): Cannot read property 'length' of null
  --- STACK TRACE FOLLOWS ---
  (TypeError): Cannot read property 'length' of null
     at Unknown.java_lang_String_$trim__Ljava_lang_String_2Ljava_lang_String_2(Unknown source:0)
     at Unknown.org_rhq_enterprise_gui_coregui_client_dashboard_portlets_groups_GroupOperationsCriteriaDataSource_getFetchCriteria__Lcom_smartgwt_client_data_DSRequest_2Lorg_rhq_core_domain_criteria_GroupOperationHistoryCriteria_2(Unknown source:0)
     at Unknown.org_rhq_enterprise_gui_coregui_client_inventory_groups_detail_operation_history_GroupOperationHistoryDataSource_getFetchCriteria__Lcom_smartgwt_client_data_DSRequest_2Lorg_rhq_core_domain_criteria_BaseCriteria_2(Unknown source:0)
     at Unknown.org_rhq_enterprise_gui_coregui_client_util_RPCDataSource_transformRequest__Lcom_smartgwt_client_data_DSRequest_2Ljava_lang_Object_2(Unknown source:0)
     at Unknown.<anonymous>(Unknown source:0)
     at Unknown.com_google_gwt_core_client_impl_Impl_entry0__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(Unknown source:0)
     at Unknown.transformRequest(Unknown source:0)
     at Unknown.isc_DataSource_getServiceInputs(Unknown source:0)
     at Unknown.isc_DataSource_sendDSRequest(Unknown source:0)
     at Unknown.isc_DataSource_performDSOperation(Unknown source:0)
  

• The Group: Operations portlet on the group summary page always shows Loading data...

• Group: Operations portlet fails to display data