How would you handle a situation where a task submitted to ExecutorService is stuck or running for too long?

  • There is no way to handle a stuck task in Java; it must be manually terminated by killing the JVM process.
  • You can cancel the task using the cancel method of the Future object returned when submitting the task.
  • You can increase the task timeout setting to give it more time to complete.
  • You can use the ExecutorService.shutdownNow() method to forcefully terminate all running tasks and shut down the service.
When a task is stuck or running for too long, you can handle it by canceling the task using the cancel method of the Future object returned when submitting the task. This allows graceful termination of the task without affecting the entire application. Other options, like forcefully shutting down the ExecutorService or modifying the task's timeout settings, may have unintended consequences.
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