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
* @return
	 * @throws Exception
	 */
	protected boolean __validate( ) throws Exception
	{
		if ( !param.validate( ) )
			return false;
		
		Pattern p = Pattern.compile( "^\\w+$" ); 
		Matcher m = p.matcher( param.getId( ) );
		if ( !m.find( ) )
		{
			throw new JspTagException( BirtResources
					.getMessage( ResourceConstants.TAGLIB_INVALID_ATTR_ID ) );
		}
		
		if ( pageContext.findAttribute( param.getId( ) ) != null )
		{
			throw new JspTagException( BirtResources
					.getMessage( ResourceConstants.TAGLIB_ATTR_ID_DUPLICATE ) );
		}
		return true;
	}
	/**
	 * Handle event before doEndTag
	 */
	protected void __beforeEndTag( )
	{
		
		pageContext.setAttribute( param.getId( ), param.getName( ) );