Bug 191685 [regression]Set default value doesn't work in Report Parameter[0705]
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
public void dispose( )
		{
		}
		public boolean isLabelProperty( Object element, String property )
		{
			return false;
		}
		public void removeListener( ILabelProviderListener listener )
		{
		}
	};
	private final ITableAreaModifier tableAreaModifier = new ITableAreaModifier( ) {
		public boolean editItem( final Object element )
		{
			final SelectionChoice choice = (SelectionChoice) element;
			boolean isDefault = isDefaultChoice( choice );
			SelectionChoiceDialog dialog = new SelectionChoiceDialog( Messages.getString( "ParameterDialog.SelectionDialog.Edit" ) ); 
			dialog.setInput( choice );
			dialog.setValidator( new SelectionChoiceDialog.ISelectionChoiceValidator( ) {
				public String validate( String displayLabel, String value )
				{
					return validateChoice( choice, displayLabel, value );
				}
			} );
			if ( dialog.open( ) == Dialog.OK )
			{
				choice.setValue( convertToStandardFormat( choice.getValue( ) ) );
				if ( isDefault )
				{
					changeDefaultValue( choice.getValue( ) );