openinx commented on a change in pull request #2258:
URL: https://github.com/apache/iceberg/pull/2258#discussion_r595671361
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File path: core/src/main/java/org/apache/iceberg/BaseFile.java
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@@ -434,7 +433,7 @@ public Integer sortOrderId() {
if (map != null) {
Map<K, V> copy = Maps.newHashMapWithExpectedSize(map.size());
copy.putAll(map);
- return Collections.unmodifiableMap(copy);
Review comment:
+1 to fix this BaseFile's kryo serialization issues. I encountered the
same issue when preparing the rewrite action for v2 (
https://github.com/apache/iceberg/pull/2303/files#diff-b51f408c19404436a1cf77f1f31b0a87e5ec1404295f576fc3ca90849de90da0R436).
I read the patch #775, it just change the
`com.google.common.collect.ImmutableList` to
`java.util.Collections.UnmodifiableList`, both them does not support the `add`
method, so how did the PR fix the kryo issue ? I did not get the point.
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