src/main/java/com/alipay/remoting/rpc/RpcRemoting.java
public void invokeWithCallback(final Connection conn, final Object request,
                                   final InvokeContext invokeContext,
                                   final InvokeCallback invokeCallback, final int timeoutMillis)
                                                                                                throws RemotingException {
        RemotingCommand requestCommand = toRemotingCommand(request, conn, invokeContext,
            timeoutMillis);
        preProcessInvokeContext(invokeContext, requestCommand, conn);
        super.invokeWithCallback(conn, requestCommand, invokeCallback, timeoutMillis);
    }
public void invokeWithCallback(final Connection conn, final Object request,
                                   final InvokeContext invokeContext,
                                   final InvokeCallback invokeCallback, final int timeoutMillis)
                                                                                                throws RemotingException {
        RemotingCommand requestCommand = toRemotingCommand(request, conn, invokeContext,
            timeoutMillis);
        preProcessInvokeContext(invokeContext, requestCommand, conn);
        super.invokeWithCallback(conn, requestCommand, invokeCallback, timeoutMillis);
    }
public void invokeWithCallback ( final Connection conn , final Object request , final InvokeContext invokeContext , final InvokeCallback invokeCallback , final int timeoutMillis ) throws RemotingException { RemotingCommand requestCommand = toRemotingCommand ( request , conn , invokeContext , timeoutMillis ) ; preProcessInvokeContext ( invokeContext , requestCommand , conn ) ; super . invokeWithCallback ( conn , requestCommand , invokeCallback , timeoutMillis ) ; }
Rpc invocation with callback.<br>
Notice! DO NOT modify the request object concurrently when this method is called.

@param conn
@param request
@param invokeContext
@param invokeCallback
@param timeoutMillis
@throws RemotingException
Rpc invocation with callback . <br > Notice! DO NOT modify the request object concurrently when this method is called .