Blogs

The Executor Framework – Part V

So far in the Executor Framework blog post series, I have covered the following topics:

Topics: Executor Executors.newCachedThreadPool Java Callable ExecutorService invokeAny Multithreading BlockingQueue Concurrency API ThreadPoolExecutor ExecutorService callable Executors Technology

The Executor Framework – Part IV

In the Part III of Executor Framework blog post series, I had written about Callable interface, creating Callable task and assigning a timeout to ExecutorService after shutdown.

Topics: Java ExecutorService Callable Multithreading Concurrency API Future Technology

The Executor Framework – Part III

In the Part II of Executor Framework blog post series, I had written about creating cancellable Runnable task and creating Runnable task with a timeout with the help of this framework. I had also written about two submit methods of ExecutorService, which are used to create asynchronous task.

Topics: Runnable Java ExecutorService Callable Multithreading Concurrency API ExecutorService awaitTermination Future submit callable Future Technology

Interrupting Threads In Java

In a Java application, a thread may keep waiting for a long time after executing wait() or Thread.join() or by put() or take() methods of a BlockingQueue. We also refer such a thread as a blocked thread since it remains blocked until some operation is performed. Sometimes a thread can also be blocked for a certain time by Thread.sleep(). When a thread is blocked for a long time you may need to take the thread out of the WAITING or TIMED_WAITING state. While writing a Java application, we need to take care that a thread does not remain blocked for too long. The corrective action that needs to be performed in such circumstances depends on the type of task the thread is executing. If the task is cancellable, it is simply aborted and if it is not cancellable then a logic needs to be implemented to enable its execution.

Topics: Java NIO ReentrantLock Runnable Java ExecutorService Callable Thread Multithreading BlockingQueue InterruptibleChannel Future Technology Thread Interrupt

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