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
paramGroup.setPromptTextKey( handle.getPromptTextKey( ) );
			SlotHandle parameters = handle.getParameters( );
			
			List properties = handle.getUserProperties( );
			for ( int i = 0; i < properties.size( ); i++ )
			{
				UserPropertyDefn p = (UserPropertyDefn) properties.get( i );
				paramGroup.addUserProperty( p.getName( ), handle.getProperty( p
						.getName( ) ) );
			}
			int size = parameters.getCount( );
			for ( int n = 0; n < size; n++ )
			{
				apply( parameters.get( n ) );
				if ( currentElement != null )
				{
					paramGroup.addParameter( (IParameterDefnBase) currentElement );
				}
			}
			currentElement = paramGroup;
		}
		public void visitCascadingParameterGroup(
				CascadingParameterGroupHandle handle )
		{
			CascadingParameterGroupDefn paramGroup = new CascadingParameterGroupDefn( );
			paramGroup.setLocale( ulocale.toLocale( ) );
			paramGroup.setHandle( handle );
			paramGroup
					.setParameterType( IParameterDefnBase.CASCADING_PARAMETER_GROUP );
			paramGroup.setName( handle.getName( ) );