• 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: 2.7.6-SNAPSHOT
• Operating System version: Mac
• Java version: 1.8

Steps to reproduce this issue

run dubbo-samples-stub sample

Expected Result

"stub - greeting dubbo"

Actual Result

return "greeting dubbo"