dubbo 2.7.4.1 版本dubbo-demo 运行报错,无法初始化配置器

[hzhxxx]

• I have searched the issues of this repository and believe that this is not a duplicate.
• I have checked the FAQ of this repository and believe that this is not a duplicate.

Environment

• Dubbo version: 2.7.4
• Operating System version: win 10
• Java version: jdk 8u22

Steps to reproduce this issue

dubbo 2.7.4 版本dubbo-demo 运行报错,无法初始化配置器

1. 运行 dubbo-demo-api-provider,使用 zookeeper 3.5,已经确认zk 正常。
   service.setRegistry(new RegistryConfig("zookeeper://192.168.1.203:2181"));
   运行报错，错误位于 AbstractInterfaceConfig::useRegistryForConfigIfNecessary
   的 628 行
   cc.getParameters().put(org.apache.dubbo.remoting.Constants.CLIENT_KEY,rc.getClient());
   提示 rc.getClient() 为空

2. 使用 nacos 正常,修改代码，编译运行正常
   service.setRegistry(new RegistryConfig("nacos://192.168.1.207:8848"));

3. dubbo-demo-xml-provider 也是相同的错误

Pls. provide [GitHub address] to reproduce this issue.

Expected Result

What do you expected from the above steps？

Actual Result

What actually happens?

If there is an exception, please attach the exception trace:

Just put your stack trace here!
Exception in thread "main" java.lang.NullPointerException
	at org.apache.dubbo.config.AbstractInterfaceConfig.lambda$null$7(AbstractInterfaceConfig.java:628)
	at java.util.Optional.orElseGet(Optional.java:267)

[lkj41110]

#5219 ,it was fixed in 2.7.4.1 . You can try it.

[yangzhi666]

是由于demo中没有初始化这个map造成的。
估计是nacos的模式下，会从注册中心取回信息，从而初始化。
这个被开发人员落下了。。。。。

[chickenlj]

Please try 2.7.4.1 or later version.