jackye1995 commented on a change in pull request #2333:
URL: https://github.com/apache/iceberg/pull/2333#discussion_r599983663



##########
File path: core/src/main/java/org/apache/iceberg/CatalogUtil.java
##########
@@ -197,10 +197,17 @@ public static Catalog buildIcebergCatalog(String name, 
Map<String, String> optio
   /**
    * Load a custom {@link FileIO} implementation.
    * <p>
-   * The implementation must have a no-arg constructor.
+   * The implementation should have a no-arg constructor.
    * If the class implements {@link Configurable},
    * a Hadoop config will be passed using {@link 
Configurable#setConf(Configuration)}.
-   * {@link FileIO#initialize(Map properties)} is called to complete the 
initialization.
+   *
+   * For compatibility with HadoopFileIO,

Review comment:
       Yes I also noticed this is a bit annoying to see a stack trace printed 
when trying to load it, let me just not print the error.




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