Bug 167267 getParameterDisplayText does not work on MasterPage in PDF
getParameterDisplayText does not seem to work when used on MasterPage. This problem seems to be limited to ReportViewer and PDF format. Table from my testing Deployed to Tomcat View Report in Web Viewer View Report as PDF Format HTML OK OK N/A PDF FAIL FAIL OK Incidentally getParameterDisplayText works fine in all of the above cases if used in footer of table in the report body.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
* Report parameters used to create the report content
	 */
	private Map params = new BirtHashMap( );
	private Map persistentBeans = new HashMap( );
	private Map transientBeans = new HashMap( );
	private ReportDocumentWriter docWriter;
	/**
	 * app context
	 */
	private Map appContext;
	/**
	 * report context used to evaluate the java-based script.
	 */
	private IReportContext reportContext;
	/**
	 * options used to render the report content
	 */
	private IRenderOption renderOption;
	/**
	 * the current locale, used to localize the report content
	 */
	private Locale locale;
	
	/**
	 * report document, may be the output or input.
	 */
	private IReportDocument reportDoc;
	/**
	 * the created report content
	 */