GO and JAVA cannot communicate with each other due to case issues

[ssfyn]

Environment

• Server: go: v3.1.0 or v3.1.1-rc1, java: 3.17
• Client: go: v3.1.0 or v3.1.1-rc1, java: 3.17
• Protocol: triple
• Registry: zookeeper (go: interface, java: service+interface)

Issue description

Should the rpc method in the proto file be defined as PascalCase or camelCase?
No matter which one, go and java are currently unable to communicate with each other.

rpc method using PascalCase:

// The greeting service definition.
service GreeterService {
  // Sends a greeting
  rpc Greet(HelloRequest) returns (HelloResponse) {}
}

// The request message containing the user's name.
message HelloRequest {
  string name = 1;
}

// The response message containing the greetings
message HelloResponse {
  string message = 1;
}

result: java client convert method name to camelCase

client	server	result
go	go	Success
go	java	Success
java	java	java client: throw exception UNIMPLEMENTED : Method : greet not found of service:com.example.triple.service.GreeterService, maybe because java server return status is UNIMPLEMENTED(12)
java	go	go server: return error cannot find method [greet] of service [com.example.GreeterService] in dubbo

rpc method using camelCase (not followed protobuf style guid):

// The greeting service definition.
service GreeterService {
  // Sends a greeting
  rpc greet(HelloRequest) returns (HelloResponse) {}
}

// The request message containing the user's name.
message HelloRequest {
  string name = 1;
}

// The response message containing the greetings
message HelloResponse {
  string message = 1;
}

result: go server convert method name to PascalCase, but serviceInfo still camelCase

client	server	result
go	go	go server: throw error: unknown method Greet for service com.example.GreeterService
go	java	Success
java	java	Success
java	go	go server: throw error: unknown method Greet for service com.example.GreeterService