Bug 199714 NPE with invalid url[0002]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
private Collection parameterDefList = null;
	/**
	 * Display Text of Select Parameters
	 */
	private Map displayTexts = null;
	/**
	 * Module Options
	 */
	private Map moduleOptions = null;
	/**
	 * Request Type
	 */
	private String requestType;
	/**
	 * Default parameter values map
	 */
	private Map defaultValues;
	/**
	 * Locale parameter list
	 */
	private List locParams;
	/**
	 * Constructor.
	 * 
	 * @param request
	 */
	public ViewerAttributeBean( HttpServletRequest request )
	{
		try
		{