XComp commented on code in PR #25050:
URL: https://github.com/apache/flink/pull/25050#discussion_r1668880762
##########
flink-runtime/src/main/java/org/apache/flink/runtime/blob/BlobServer.java:
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@@ -354,10 +354,12 @@ public void close() throws IOException {
if (shutdownRequested.compareAndSet(false, true)) {
Exception exception = null;
- try {
- this.serverSocket.close();
- } catch (IOException ioe) {
- exception = ioe;
+ if (serverSocket != null) { // can be null if shut down before
constructor completion
Review Comment:
we would need another `null` check in further down in the `closeAsync`
method (see
[BlobServer:401](https://github.com/apache/flink/blob/2d524cf16224834ef4b8c3fd7f4c63caabdf43ba/flink-runtime/src/main/java/org/apache/flink/runtime/blob/BlobServer.java#L401))
to prevent the `NullPointerPointerException` to be thrown there, instead.
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