此消息并不重要，参见8.5.79 TldScanner来源：

/**
 * Scan web application resources for TLDs, recursively.
 *
 * @param startPath the directory resource to scan
 * @throws IOException  if there was a problem scanning for or loading a TLD
 * @throws SAXException if there was a problem parsing a TLD
 */
protected void scanResourcePaths(String startPath)
        throws IOException, SAXException {

    boolean found = false;
    Set<String> dirList = context.getResourcePaths(startPath);
    if (dirList != null) {
        for (String path : dirList) {
            if (path.startsWith("/WEB-INF/classes/")) {
                // Skip: JSP.7.3.1
            } else if (path.startsWith("/WEB-INF/lib/")) {
                // Skip: JSP.7.3.1
            } else if (path.endsWith("/")) {
                scanResourcePaths(path);
            } else if (path.startsWith("/WEB-INF/tags/")) {
                // JSP 7.3.1: in /WEB-INF/tags only consider implicit.tld
                if (path.endsWith("/implicit.tld")) {
                    found = true;
                    parseTld(path);
                }
            } else if (path.endsWith(TLD_EXT)) {
                found = true;
                parseTld(path);
            }
        }
    }
    if (found) {
        if (log.isDebugEnabled()) {
            log.debug(Localizer.getMessage("jsp.tldCache.tldInResourcePath", startPath));
        }
    } else {
        if (log.isDebugEnabled()) {
            log.debug(Localizer.getMessage("jsp.tldCache.noTldInResourcePath", startPath));
        }
    }
}

和
jsp.tldCache.noTldInResourcePath=No TLD files were found in resource path [{0}].