+++ This bug was initially created as a clone of Bug #824778 +++

Description of problem:
A schedule created in RHQ Resource/Operations/Schedules once created cannot be deleted.

Version-Release number of selected component (if applicable):
4.4

How reproducible:
Always

Steps to Reproduce:
1. In the resource browser select a JBoss server (or anything else, a queue etc).
2. Go to Operations/Schedules/New and create a schedule.
3. Then try to delete it
  
Actual results:
The message in Message center is: "Failure in datasource while processing REMOVE request.". Stack trace from Message Center added below to additional info.

Expected results:
The schedule should be successfully deleted.

Additional info:


Detail :	

java.lang.ClassCastException:null
--- STACK TRACE FOLLOWS ---
null
   at Unknown.java_lang_ClassCastException_ClassCastException__V(Unknown Source)
   at Unknown.com_google_gwt_lang_Cast_dynamicCast__Ljava_lang_Object_2ILjava_lang_Object_2(Unknown Source)
   at Unknown.org_rhq_enterprise_gui_coregui_client_inventory_common_detail_operation_schedule_AbstractOperationScheduleDataSource_$copyValues__Lorg_rhq_enterprise_gui_coregui_client_inventory_common_detail_operation_schedule_AbstractOperationScheduleDataSource_2Lcom_smartgwt_client_data_Record_2Lorg_rhq_core_domain_operation_bean_OperationSchedule_2(Unknown Source)
   at Unknown.org_rhq_enterprise_gui_coregui_client_inventory_resource_detail_operation_schedule_ResourceOperationScheduleDataSource_executeRemove__Lcom_smartgwt_client_data_Record_2Lcom_smartgwt_client_data_DSRequest_2Lcom_smartgwt_client_data_DSResponse_2V(Unknown Source)
   at Unknown.org_rhq_enterprise_gui_coregui_client_util_RPCDataSource_transformRequest__Lcom_smartgwt_client_data_DSRequest_2Ljava_lang_Object_2(Unknown Source)
   at Unknown.anonymous(Unknown Source)
   at Unknown.com_google_gwt_core_client_impl_Impl_apply__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(Unknown Source)
   at Unknown.com_google_gwt_core_client_impl_Impl_entry0__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(Unknown Source)
   at Unknown.anonymous(Unknown Source)
   at Unknown.isc_DataSource_getServiceInputs(Unknown Source)
   at Unknown.isc_DataSource_sendDSRequest(Unknown Source)
   at Unknown.isc_DataSource_performDSOperation(Unknown Source)
   at Unknown.isc_Canvas_deleteRecords(Unknown Source)
   at Unknown.isc_Canvas_removeSelectedData(Unknown Source)
   at Unknown.com_smartgwt_client_widgets_grid_ListGrid_$removeSelectedData__Lcom_smartgwt_client_widgets_grid_ListGrid_2Lcom_smartgwt_client_data_DSCallback_2Lcom_smartgwt_client_data_DSRequest_2V(Unknown Source)
   at Unknown.org_rhq_enterprise_gui_coregui_client_components_table_Table_$deleteSelectedRecords__Lorg_rhq_enterprise_gui_coregui_client_components_table_Table_2Lcom_smartgwt_client_data_DSRequest_2V(Unknown Source)
   at Unknown.org_rhq_enterprise_gui_coregui_client_inventory_common_detail_operation_schedule_AbstractOperationScheduleListView$2_executeAction___3Lcom_smartgwt_client_widgets_grid_ListGridRecord_2Ljava_lang_Object_2V(Unknown Source)
   at Unknown.org_rhq_enterprise_gui_coregui_client_components_table_Table$2$1_execute__Ljava_lang_Boolean_2V(Unknown Source)
   at Unknown.anonymous(Unknown Source)
   at Unknown.isc_c_Class_fireCallback(Unknown Source)
   at Unknown.isc_Class_fireCallback(Unknown Source)
   at Unknown.isc_c_Class_fireCallback(Unknown Source)
   at Unknown.isc_c_Timer__fireTimeout(Unknown Source)
   at Unknown.anonymous(Unknown Source)
   at Unknown.anonymous(Unknown Source)