Why do the Java code samples create a CountDownLatch, but never call await()?

[TKProlifics]

[Enter feedback here]

I am writing a JMS client that runs in a Function App. It will run every 15s and continue to get messages from a queue until the queue is empty (even if it takes more than 15s). The messages get transferred onto a Service Bus queue.

I am very puzzled by the use of CountDownLatch in the code samples on this page. I have read the Java docs. Based on the docs, there is no point in creating a CountDownLatch unless there is a call to its await() method somewhere. But none of the code on this page calls await()!

Is this redundant code, or am I missing something important?

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Document Details

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• ID: f0bd1414-d29f-fe3b-503f-365692c77ca5
• Version Independent ID: 8627b318-bd95-0176-bfd5-6cb20f661692
• Content: Get started with Azure Service Bus queues (Java) - Azure Service Bus
• Content Source: articles/service-bus-messaging/service-bus-java-how-to-use-queues.md
• Service: service-bus-messaging
• GitHub Login: @spelluru
• Microsoft Alias: spelluru

[RamanathanChinnappan-MSFT]

@TKProlifics Thanks for your feedback! We will investigate and update as appropriate.

[MayankBargali-MSFT]

spelluru Can you please review it. It looks like the sample code can be modified to remove the CountDownLatch and still achieve the same result. Let me know in case I have missed anything.

[spelluru]

@MayankBargali-MSFT - Yes. It's not needed. I will update and publish the article today. Thanks.

[spelluru]

The update is live now.

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