[jira] [Created] (CAMEL-24408) SEDA discardIfNoConsumers breaks after consumer removal when sharing the same URI

["Gaelle Fournier (Jira)" <ji...@apache.org>]

Gaelle Fournier created CAMEL-24408:
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             Summary: SEDA discardIfNoConsumers breaks after consumer removal when sharing the same URI
                 Key: CAMEL-24408
                 URL: https://issues.apache.org/jira/browse/CAMEL-24408
             Project: Camel
          Issue Type: Bug
          Components: camel-seda
    Affects Versions: 4.22.0, 4.19.0
            Reporter: Gaelle Fournier


When a SEDA producer and consumer share the same endpoint URI, removing the consumer route destroys the shared queue state. Subsequent sends throw SedaConsumerNotAvailableException instead of silently discarding as {{discardIfNoConsumers=true}} specifies. The exchange is discarded correctly before a consumer is ever added, but not after one is removed.

The root cause seems to be in {{SedaComponent.onShutdownEndpoint() }}. It checks {{endpoint.getConsumers().isEmpty() }}before tearing down the queue, but does not check for active producers. Since the producer and consumer resolve to the same {{SedaEndpoint}} instance, the {{QueueReference}} is removed entirely. {{SedaProducer.addToQueue()}} then gets a null queue and throws before the {{discardIfNoConsumers}} check  is reached.

See: https://camel.zulipchat.com/#narrow/channel/257298-camel/topic/Question.20about.20SedaConsumerNotAvailableException/with/617246614



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