Bug 188596 Some parameter value cannot be passed to report through URL[0002]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/presentation/aggregation/parameter/RadioButtonParameterFragment.java
boolean isDisplayTextInList = false;
			for ( Iterator iter = selectionList.iterator( ); iter.hasNext( ); )
			{
				ParameterSelectionChoice selectionItem = (ParameterSelectionChoice) iter
						.next( );
				Object value = selectionItem.getValue( );
				try
				{
					
					value = DataUtil.convert( value, paramDef.getDataType( ) );
				}
				catch ( Exception e )
				{
					value = null;
				}
				
				String displayValue = DataUtil.getDisplayValue( value );
				if ( displayValue == null )
					continue;
				String label = selectionItem.getLabel( );
				if ( label == null || label.length( ) <= 0 )
				{
					
					
					label = ParameterValidationUtil.getDisplayValue( null,
							paramDef.getPattern( ), value, locale );
				}
				if ( label == null )
					continue;
				label = ParameterAccessor.htmlEncode( label );