Bug 143671 [Linux-As][Smoke]Parameter can't be used.
Details: [Linux-As]Parameter can't be used. Setp: 1.New a report design. 2.New a paremeter. 3.Preview and click Run Report Parameter. 4.Dialog pop up and press OK. Actual resutl: Report error.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
return UTFString;
	}
	/**
	 * URL encoding based on incoming encoding format.
	 * 
	 * @param s
	 *            string to be encoded.
	 * @param format
	 *            encoding format.
	 * @return
	 */
	protected static String urlEncode( String s, String format )
	{
		assert ISO_8859_1_ENCODE.equalsIgnoreCase( format )
				|| UTF_8_ENCODE.equalsIgnoreCase( format );
		String encodedString = s;
		if ( s != null )
		{
			try
			{
				encodedString = URLEncoder.encode( s, format );
			}
			catch ( UnsupportedEncodingException e )
			{
				encodedString = s;
			}
		}
		return encodedString;
	}
}