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
public Object getValue( )
		{
			return this.value;
		}
		
		public boolean equals( Object obj )
		{
			if ( obj == this )
			{
				return true;
			}
			if ( !(obj instanceof SelectionChoice ) )
			{
				return false;
			}
			SelectionChoice choice = (SelectionChoice)obj;
			if ( value == null )
			{
				return choice.value == null;
			}
			return value.equals( choice.value );
		}
		
		public int hashCode( )
		{
			return value == null? 0 : value.hashCode( );
		}
	}
	
	static class CascadingParameterSelectionChoice extends SelectionChoice