spring-cloud

Is your feature request related to a problem? Please describe.
In IDE idea, a red underline will occur under file pom.xml, because local environment has no property ${env.GITHUB_OAUTH_TOKEN}

Describe the solution you'd like
A single line to let idea ignore it.

Backgroud

背景

There are three ways of getting arguments in the client module now, from the properties、from the Jvm arguments and from the system environment. so it needs an unified way that get arguments.

现在总共有3种获取参数的方式在客户端模块中, 有从 properties中获取的、从Jvm参数获取的和从System环境变了中获取的. 所以需要一种统一获取参数的方式.

The reasons are as follows:

• switch arguments getting order
• better mock test

原因如

Which Component
spring-cloud-starter-stream-rocketmq

Describe the bug
When hot deployment in eclipse throw MQClientException: The producer group[mygroup] has been created before

To Reproduce
Steps to reproduce the behavior:

1. Spring boot application with devtools in Eclipse
2. Send message using org.springframework.cloud.stream.function.StreamBridge.send
3. Modify any cod

Describe the bug

Hi community, I find the code quality in README.adoc can't display.

Sample
No