Bug 209450 [regression]Duplicate values display in Cascading parameter list[0705]
Descripption: Duplicate values display in Cascading parameter list Build number:2.3.0.v20071112 Steps to reproduce: 1. New sample data source and dataset from CUSTOMERS. 2. New a cascading parameter from COUNTRY, STATE AND CITY fields. 3. Preview. Expected result: Values in three parameter list aren't duplicated. Actual result: Duplicate values show in parameter list. Error log:n/a
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/GetParameterDefinitionTask.java
{
				
				if ( parameter.getDataSetName( ) != null )
				{
					
					return getChoicesFromParameterQuery( parameter );
				}
				
			}
		}
		else if ( DesignChoiceConstants.PARAM_VALUE_TYPE_STATIC
				.equals( selectionType ) )
		{
			Iterator iter = parameter.choiceIterator( );
			ArrayList choices = new ArrayList( );
			while ( iter.hasNext( ) )
			{
				SelectionChoiceHandle choice = (SelectionChoiceHandle) iter
						.next( );
				String label = report
						.getMessage( choice.getLabelKey( ), locale );
				if ( label == null )
				{
					label = choice.getLabel( );
				}
				Object value = convertToType( choice.getValue( ), dataType );
				choices.add( new SelectionChoice( label, value ) );
			}
			if ( !fixedOrder )
				Collections.sort( choices, new SelectionChoiceComparator(