@Override
public XDR handleInternal(RpcCall rpcCall, final XDR xdr, XDR out,
InetAddress client, Channel channel) {
int procedure = rpcCall.getProcedure();
int xid = rpcCall.getXid();
RpcAuthSys authSys = null;
// Ignore auth only for NFSPROC3_NULL, especially for Linux clients.
if (procedure != Nfs3Constant.NFSPROC3_NULL) {
if (rpcCall.getCredential().getFlavor() != AuthFlavor.AUTH_SYS) {
LOG.info("Wrong RPC AUTH flavor, "