To use Apache Iceberg via the Hadoop Catalog on Databricks, it was found to work with the following settings:

- Use a Databricks Runtime version of 12.2LTS or earlier.
- Set the access mode to "No isolation shared" (the mode where Unity Catalog cannot be used).
- Use a library compatible with Java 8 (i.e., an Iceberg library earlier than version 1.6.1).
- Apply the necessary Iceberg-related settings in the Spark configuration.

There is also an article (in Japanese) that explains how to resolve the errors:

- https://qiita.com/manabian/items/4c2c78c7db77f704e5ab