[GitHub] [flink] tweise commented on a diff in pull request #20530: [FLINK-28817] NullPointerException in HybridSource when restoring from checkpoint

[GitBox]

tweise commented on code in PR #20530:
URL: https://github.com/apache/flink/pull/20530#discussion_r943582277


##########
flink-connectors/flink-connector-base/src/main/java/org/apache/flink/connector/base/source/hybrid/HybridSourceSplitEnumerator.java:
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@@ -218,7 +218,7 @@ public void handleSourceEvent(int subtaskId, SourceEvent 
sourceEvent) {
             }
 
             if (subtaskSourceIndex < currentSourceIndex) {
-                subtaskSourceIndex++;
+                subtaskSourceIndex = 
switchedSources.getSourceIndex(subtaskSourceIndex);

Review Comment:
   ```suggestion
                   // find initial or next index for the reader
                   subtaskSourceIndex = 
switchedSources.getSourceIndex(subtaskSourceIndex);
   ```



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