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Editorial Team
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Asked: 2026-05-12T06:24:45+00:00

Is there a way for a Java program to detect when the operating system

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Is there a way for a Java program to detect when the operating system is about to go to sleep, or failing that, at least detecting a wake up?

The actual problem is that in a particular application a number of MySQL database operations are run in the background. In testing on a Windows machine these database transactions are interrupted after a sleep/wake-up cycle causing a ton of error conditions in the program. These errors typically look something like this:

java.net.SocketException
MESSAGE: Software caused connection abort: recv failed

If we could react to a ‘will sleep soon’ event we could attempt to pause background operations preempting the problem. Less ideally if we could react to a ‘just woke up’ event we could at least suppress the error messages.

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1 Answer

  1. Editorial Team

    You could detect the wakeup by periodically comparing the current system time to the previous system time.

    Edit: here’s an example that looks like it would help you detect when the machine is going to sleep:
    http://www.codeguru.com/cpp/w-p/system/messagehandling/article.php/c6907

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