tweise commented on code in PR #19654:
URL: https://github.com/apache/flink/pull/19654#discussion_r867550647
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flink-connectors/flink-connector-base/src/main/java/org/apache/flink/connector/base/source/hybrid/HybridSourceSplitEnumerator.java:
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@@ -355,7 +355,8 @@ public Map<Integer, ReaderInfo> registeredReaders() {
private Map<Integer, ReaderInfo> filterRegisteredReaders(Map<Integer,
ReaderInfo> readers) {
Map<Integer, ReaderInfo> readersForSource = new
HashMap<>(readers.size());
for (Map.Entry<Integer, ReaderInfo> e : readers.entrySet()) {
- if (readerSourceIndex.get(e.getKey()) == (Integer)
sourceIndex) {
+ // readerSourceIndex get value could be null
Review Comment:
e.getKey() won't return null
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