rpc-framework

What language are you using?

C++

What operating system (Linux, Ubuntu, …) and version?

Linux

What runtime / compiler are you using (e.g. jdk version or version of gcc)

4.8.5

Make sure you include information that can help us debug (full error message, exception listing, stack trace, logs).
tars的发布流程：tarsweb上传安装包 -> tarsAdminRegistry开始发布 -> tarspatch 从/usr/local/app/p

Hello,

Our static analyzer found a following potential NPE. We have checked the feasibility of this execution trace. It is necessary to defend this vulnerability to improve the code quality.

Here is the bug trace.

1. Return null to caller
   https://github.com/sofastack/sofa-rpc/blob/4f824e2b2897ce5b6cbc8944219e0c96b56ebd02/core/api/src/main/java/com/alipay/sofa/rpc/ext/ExtensionLoader.

Currently, UnframedGrpcService returns an error message as plain text.
https://github.com/line/armeria/blob/54b70906bcd813f0b9b2c6715ad4086160ac49b2/grpc/src/main/java/com/linecorp/armeria/server/grpc/UnframedGrpcService.java#L255-L272
It would be nice to return a JSON object if the content type is JSON compatible.

{ 
   "code": "FAILED_PRECONDITION",
   "message": "Input validatio

If you r going to wait response,or block the goroutine in a getty session(tcp conection), task pool can not be null。

func (s *Server) newSession(session getty.Session) error {
	var (
		ok      bool
		tcpConn *net.TCPConn
	)
	
	// 省略部分代码...
	session.SetTaskPool(srvGrpool)
	return nil
}

ortherwise,handleTcpPackage() will blocked,led to the response missing

func (s *session