[Bug]: Nacos reports an error when using nacos-postgresql-datasource-plugin-ext: java.lang.ClassCastException

[mikolls]

Describe the bug
An error occurs when starting with the PostgreSQL plugin：java.lang.ClassCastException: com.sun.proxy.$Proxy114 cannot be cast to com.alibaba.nacos.plugin.datasource.mapper.Mapper

How to Reproduce

1. Download the plugin and configure the PostgreSQL data source in the Nacos source code，
2. nacos-plugin url
3. Turn on the database log: nacos.plugin.datasource.log.enabled=true
4. Start nacos
5. See errors
   
6. After trying, it was found that after settingnacos.plugin.datasource.log.enabled=true, the code will go through this part of the logic:
   

But in fact, the interface cannot be obtained here

You can see that ConfigInfoMapperByPostgresql does not implement any interface

The one that implements the interface is ConfigInfoMapperByMySql

7. Therefore, only when using the database plugin and settingnacos.plugin.datasource.log.enabled=truewill an error occur, whereas Nacos’ built-in MySQL and Derby do not have this error.

Desktop (please complete the following information):

• OS: Windows 10
• Version nacos2.3.2 or nacos2.4.0
• Module naming-config

Additional context
Complete stack information
log.txt

[mikolls]

If it needs to be fixed, please assign it to me

[KomachiSion]

I remember this problem has been fixed in new version. Can you try new version?

[mikolls]

I remember this problem has been fixed in new version. Can you try new version?

I tried the latest version 2.4.0 and had the same bug