Bug 314631 Cann't get correct default values for parameters that with non-constant default value expressions
Steps to reproduce: 1. create a report with a scalar parameter that has non-constant default value expression such as BirtDateTime.today() 2. setup a project to get the default values of the parameter in BIRT runtime Eg. IReportEngine engine = createReportEngine( ); IRunnable runnable = engine.openReportDesign( REPORT_DESIGN ); IGetParamaterDefinitionTask task = engine.createGetParameterDefinitionTask( runnable ); HashMap result = task.getDefaultValues(); Expect result: The result map contains a parameter name and default value pair in which the default value is a Date instance of today. Actural result: The default value is null.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/GetParameterDefinitionTask.java
while ( iter.hasNext( ) )
				{
					Object parameter = iter.next( );
					if ( parameter instanceof ScalarParameterHandle )
					{
						ParameterHelper.addParameterBinding( queryDefn,
								(ScalarParameterHandle) parameter, dteSession
										.getModelAdaptor( ) );
						ParameterHelper.addParameterSortBy( queryDefn,
								(ScalarParameterHandle) parameter, dteSession
										.getModelAdaptor( ) );
					}
				}
				return executeQuery( dteSession, queryDefn );
			}
			catch ( BirtException ex )
			{
				log.log( Level.WARNING, ex.getMessage( ), ex );
				executionContext.addException( dataSet, ex );
			}
		}
		return  null;
	}
	private CascadingParameterGroupHandle getCascadingParameterGroup(
			String name )
	{
		ModuleHandle design = executionContext.getDesign( );
		return design.findCascadingParameterGroup( name );
	}
	static class SelectionChoice implements IParameterSelectionChoice