Bug 183307 JS error with cascading group in birt:paramDef tag.[0603]
Description: JS error with cascading group in birt:paramDef tag. Build number:2.2.0.v200704190630 Steps to reproduce: 1. New a report with cascading group from sample table OFFICES(COUNTRY, OFFICECODE). 2. New a jsp file with content: <birt:parameterPage id="0" name="custom param page" reportDesign="report.rptdesign" isCustom="true" pattern="frameset"> <birt:paramDef id="9" name="country" value="USA"/> <input type="submit" name="OK" value="submit"/> </birt:parameterPage> 3. Preview the jsp file. Expected result: Display Listbox/combobox with value "USA" as default. Actual result: JS error A runtime error is occurred Error log:N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/taglib/ParamDefTag.java
writer.write( " >" ); 
			writer
					.write( "<label id=\"" + ( radioNullValueId + "_label" ) + "\"" ); 
			writer.write( " title=\"" + ITagConstants.NULL_VALUE + "\"" ); 
			writer.write( " for=\"" + radioNullValueId + "\">" ); 
			writer.write( ITagConstants.NULL_VALUE );
			writer.write( "</label>" ); 
			writer.write( "</input>\n" ); 
		}
	}
	/**
	 * Handle output List Box type parameter
	 * 
	 * @throws Exception
	 */
	protected void __handleListBox( ) throws Exception
	{
		if ( paramDef.getGroup( ) != null && paramDef.getGroup( ).cascade( ) )
		{
			JspWriter writer = pageContext.getOut( );
			
			if ( pageContext.findAttribute( IMPORT_FILES_ATTR ) == null )
			{
				String baseURL = "/webcontent/"; 
				if ( viewer.getBaseURL( ) != null )
				{
					baseURL = viewer.getBaseURL( ) + baseURL;
				}
				else
				{