HuaHuaY opened a new issue, #3401:
URL: https://github.com/apache/parquet-java/issues/3401

   ### Describe the bug, including details regarding any error messages, 
version, and platform.
   
   Show in https://github.com/apache/arrow/issues/49114#issuecomment-3839473577.
   `list<map<string, string>>` schema will generate this structure, and the 
`MAP_KEY_VALUE` annotation at inner level is not required in parquet's spec 
https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#maps.
   ```thrift
     required group list_of_maps (LIST) {
       repeated group array (MAP) {
         repeated group key_value (MAP_KEY_VALUE) {
           required binary key (STRING);
           required binary value (STRING);
         }
       }
     }
   ```
   
   ### Component(s)
   
   _No response_


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