Bug 140534 [Smoke]Can't changed the value of parameter use show report parameter
Details: [Smoke]Can't changed the value of parameter use show report parameter Step: 1. New a parameter. 2. Change display type to list box. 3. Insert some value into selection value and set the first value to default value. 4. Drop the parameter inro layout 5. Preview and press show report parameter, change the value and press OK. Actual result: The value can't be changed.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
import org.eclipse.birt.report.service.ReportEngineService;
import org.eclipse.birt.report.service.api.IViewerReportDesignHandle;
import org.eclipse.birt.report.service.api.IViewerReportService;
import org.eclipse.birt.report.service.api.InputOptions;
import org.eclipse.birt.report.service.api.ParameterDefinition;
import org.eclipse.birt.report.service.api.ReportServiceException;
import org.eclipse.birt.report.utility.ParameterAccessor;
import com.ibm.icu.util.ULocale;
/**
 * Data bean for viewing request. Birt viewer distributes process logic into
 * viewer fragments. Each fragment seperates its front-end and back-end process
 * into jsp page and "code behand" fragment class. Viewer attribute bean serves
 * as:
 * <ol>
 * <li> object that carries the data shared among different fragments</li>
 * <li> object that carries the date shared between front-end jsp page and
 * back-end class</li>
 * </ol>
 * In current implementation, ViewerAttributeBean uses request scope.
 * <p>
 */
public class ViewerAttributeBean extends BaseAttributeBean
{
	/**
	 * Constructor.
	 * 
	 * @param request
	 */
	public ViewerAttributeBean( HttpServletRequest request )
	{