Bug 148611 The edit parameter dialog hang up in my case.
Reproduce: The attachment include a library and a report. 1. Put the library file under the resource folder, "D:/Actuate/BIRTs/200606260630/eclipse/plugins/org.eclipse.birt.report.designer.ui_2.1.0.N20060624-0630/resources/" in my application. 2. Open the report, preview in the embedded viewer. 3. The Edit parameter dialog hang up. (Notice: it is the extened "dynamic" parameter that cause the problem. My CPU reaches 100% ocuppation when rendering the dialog, while when I end up closing the dummy dialog, CPU doesn't seem to be released, still 100%. )
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
if ( parameter == null )
				continue;
			String paramName = parameter.getName( );
			String paramValue = getParamValueAsString( request, parameter );
			if ( paramName != null )
				params.put( paramName, paramValue );
		}
		return params;
	}
	/**
	 * get parsed parameters as string.
	 * 
	 * @param parsedParameters
	 *            Map
	 * @param request
	 *            HttpServletRequest
	 * @param options
	 *            InputOptions
	 * 
	 * @return Map
	 */
	protected Map getParsedParametersAsStringWithDefaultValue(
			Map parsedParameters, HttpServletRequest request,
			InputOptions options ) throws ReportServiceException
	{
		if ( parsedParameters == null )
		{
			parsedParameters = new HashMap( );
			return parsedParameters;
		}