clebertsuconic commented on code in PR #4260:
URL: https://github.com/apache/activemq-artemis/pull/4260#discussion_r998288788
##########
artemis-server/src/main/java/org/apache/activemq/artemis/core/management/impl/QueueControlImpl.java:
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@@ -883,17 +883,12 @@ protected Map<String, Object>[] getFirstMessage() throws
Exception {
clearIO();
try {
List<Map<String, Object>> messages = new ArrayList<>();
- queue.flushExecutor();
final int attributeSizeLimit =
addressSettingsRepository.getMatch(address).getManagementMessageAttributeSizeLimit();
- try (LinkedListIterator<MessageReference> iterator =
queue.browserIterator()) {
- // returns just the first, as it's the first only
- if (iterator.hasNext()) {
- MessageReference ref = iterator.next();
- Message message = ref.getMessage();
- messages.add(message.toMap(attributeSizeLimit));
- }
- return messages.toArray(new Map[1]);
+ MessageReference firstMessage = queue.peekFirstMessage();
+ if (firstMessage != null) {
+ messages.add(firstMessage.getMessage().toMap(attributeSizeLimit));
}
+ return messages.toArray(new Map[1]);
Review Comment:
it makes sense... after reading what it does..
I was just getting rid of the iterator() which caused an outage on an user I
was helping out.
But I will improve that part as well.. thanks
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