Bug 200812 Issue when remove one separator setting in viewer.property[0002]
Description: Issue when remove one separator setting in viewer.property Build number:2.2.1.v200708220927 Steps to reproduce: 1. Deploy birt. 2. Open viewer.properties under WEB-INF folder. 3. Delete "viewer.sep.0=," line 4. Start server. 5. Preview report. 6. Export Data, select columns and select "Comma(,)", click OK. Expected result: Comma(,) isn't in the separator list. Actual result: Nothing happened after step6 and no error logs. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
public static Map loggers;
	/**
	 * viewer properties
	 */
	public static final String PROP_BASE_URL = "base_url"; 
	/**
	 * Engine supported output formats
	 */
	public static String[] supportedFormats = {PARAM_FORMAT_HTML,
			PARAM_FORMAT_PDF};
	/**
	 * Flag that indicated if support print on the server side.
	 */
	public static boolean isSupportedPrintOnServer = true;
	/**
	 * Flag that indicated if clean session files.
	 */
	public static boolean isCleanSessionFiles = true;
	/**
	 * Optimized HTML output flag
	 */
	public static boolean isAgentStyle;
	/**
	 * Get bookmark. If page exists, ignore bookmark.
	 * 
	 * @param request
	 * @return the bookemark
	 */
	public static String getBookmark( HttpServletRequest request )
	{