nastra commented on code in PR #6168:
URL: https://github.com/apache/iceberg/pull/6168#discussion_r1035825038


##########
core/src/main/java/org/apache/iceberg/rest/RESTSerializers.java:
##########
@@ -87,7 +88,41 @@ public static void registerAll(ObjectMapper mapper) {
     mapper.registerModule(module);
   }
 
-  public static class UpdateRequirementDeserializer extends 
JsonDeserializer<UpdateRequirement> {
+  // 
https://github.com/FasterXML/jackson-databind/commit/da339636d6a1db6fd618f1e59816fab3bb6d38d4
+  // added JacksonException to the throws declaration of 
JsonDeserializer#deserialize*(...)
+  // The purpose of this class is so that we don't propagate this API-breaking 
throws-change to any
+  // Iceberg clients

Review Comment:
   Basically RevAPI complains that `throws java.io.IOException` changed to 
`throws java.io.IOException, com.fasterxml.jackson.core.JacksonException` due 
to the Jackson version bump. 
   I think RevAPI doesn't care that `JacksonException` itself is a subclass of 
`IOException` and just complains about the signature change.
   
   That's why we're introducing a middle class that only defines `throws 
java.io.IOException` on those methods. Alternatively, we could have added those 
RevAPI breaks as accepted breaks but that didn't seem like the better approach 
to me.



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