@Override
                    public Connection getConnection() {
                        com.alipay.remoting.Connection conn = bizCtx.getConnection();
                        if (conn == null) {
                            return null;
                        }
                        return new BoltConnection(conn);
                    }
Bolt RPC server impl.

@author jiachun.fjc
jraft-core/src/main/java/com/alipay/sofa/jraft/rpc/impl/BoltRpcServer.java