5-27 - Inner class API is misused
org.apache.dubbo.common.config.ReferenceCache may be defined as non-singleton mode.
Troubleshooting and resolution steps
Check custom annotations or configurations, define the core application class as a non-singleton mode, check
Last modified January 3, 2023: Merge error code 3-3 to 3-8, 6-4 to 99-0. (#1796) (a687d30ae0)