if (clientSerial != null) {
X509Certificate[] cert = (X509Certificate[]) req.getAttribute("javax.servlet.request.X509Certificate");
if (cert == null || cert[0] == null//
- || !cert[0].getSerialNumber().toString(16).toUpperCase().equals(clientSerial) //
+ || !cert[0].getSerialNumber().toString(16).toLowerCase().equals(clientSerial) //
|| !cert[0].getIssuerDN().equals(hs.getAttribute(CERT_ISSUER))) {
hs.invalidate();
resp.sendError(403, "Certificate mismatch.");