public void invokeWithCallback(final Connection conn, final Object request,
                                   final InvokeContext invokeContext,
                                   final InvokeCallback invokeCallback, final int timeoutMillis)
                                                                                                throws RemotingException {
        ensureStarted();
        this.rpcRemoting.invokeWithCallback(conn, request, invokeContext, invokeCallback,
            timeoutMillis);
    }
Callback invocation with a {@link InvokeContext}, common api notice please see {@link #invokeWithCallback(Connection, Object, InvokeCallback, int)}

@param conn connection connection
@param request request request
@param invokeCallback invokeCallback invokeCallback
@param timeoutMillis timeoutMillis  timeoutMillis
@throws RemotingException remoting exception remoting exception
src/main/java/com/alipay/remoting/rpc/RpcServer.java