[GitHub] [iceberg] rdblue commented on a change in pull request #2349: Flink: Fix the manifest kryo serialization issue.

[GitBox <gi...@apache.org>]

rdblue commented on a change in pull request #2349:
URL: https://github.com/apache/iceberg/pull/2349#discussion_r600824358



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File path: core/src/main/java/org/apache/iceberg/GenericManifestFile.java
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@@ -145,7 +145,12 @@ private GenericManifestFile(GenericManifestFile toCopy) {
     this.existingRowsCount = toCopy.existingRowsCount;
     this.deletedFilesCount = toCopy.deletedFilesCount;
     this.deletedRowsCount = toCopy.deletedRowsCount;
-    this.partitions = copyList(toCopy.partitions, PartitionFieldSummary::copy);
+    if (toCopy.partitions != null) {
+      this.partitions = copyList(toCopy.partitions(), PartitionFieldSummary::copy)
+          .toArray(new PartitionFieldSummary[0]);

Review comment:
       Do we need to use `copyList`? What about using a Stream instead?
   
   ```java
   Streams.of(toCopy.partitions).map(PartitionFieldSummary::copy).toArray(PartitionFieldSummary[]::new);
   ```




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