RussellSpitzer commented on code in PR #18540:
URL: https://github.com/apache/iceberg/pull/18540#discussion_r4405548757
##########
core/src/main/java/org/apache/iceberg/util/Tasks.java:
##########
@@ -500,65 +500,62 @@ private static boolean causedByInterruption(Throwable
throwable) {
@SuppressWarnings("checkstyle:CyclomaticComplexity")
private static Collection<Throwable> waitFor(Collection<Future<?>> futures) {
- while (true) {
- int numFinished = 0;
+ try {
+ // block on each unfinished future in turn until all are done
for (Future<?> future : futures) {
- if (future.isDone()) {
- numFinished += 1;
- }
- }
-
- if (numFinished == futures.size()) {
- List<Throwable> uncaught = Lists.newArrayList();
- // all of the futures are done, get any uncaught exceptions
- for (Future<?> future : futures) {
+ if (!future.isDone()) {
try {
future.get();
+ } catch (ExecutionException | CancellationException ignored) {
+ // collected once all futures are done
+ }
+ }
+ }
+ } catch (InterruptedException e) {
+ LOG.warn("Interrupted while waiting for tasks to finish", e);
- } catch (InterruptedException e) {
- LOG.warn("Interrupted while getting future results", e);
- for (Throwable t : uncaught) {
- e.addSuppressed(t);
- }
- Thread.currentThread().interrupt();
- throw new RuntimeException(e);
+ for (Future<?> future : futures) {
+ future.cancel(true);
+ }
+ Thread.currentThread().interrupt();
+ throw new RuntimeException(e);
+ }
- } catch (CancellationException e) {
- // ignore cancellations
+ List<Throwable> uncaught = Lists.newArrayList();
+ // all of the futures are done, get any uncaught exceptions
+ for (Future<?> future : futures) {
+ try {
+ future.get();
- } catch (ExecutionException e) {
- Throwable cause = e.getCause();
- if (cause instanceof Error) {
- for (Throwable t : uncaught) {
- cause.addSuppressed(t);
- }
- throw (Error) cause;
- }
+ } catch (InterruptedException e) {
Review Comment:
Maybe
```java
} catch (InterruptedException e) {
throw new IllegalStateException("Completed future was interrupted", e);
}
```
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