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    <blockquote> <p>I want in case one of them throws an exception and dies to be replaced by another NEW thread. </p> </blockquote> <p>I don't quite understand why you can't do:</p> <pre><code>public void run() { // only quit the loop if the thread is interrupted while (!Thread.currentThread().isInterrupted()) { try { // do some stuff that might throw repeat task; } catch (Exception e) { // recover from the throw here but then continue running } } } </code></pre> <p>Why do you need to restart a NEW thread? Just because a task threw an exception doesn't mean that it is somehow corrupt and it needs a fresh one to work appropriately. If you are trying to catch <em>all</em> exceptions (including <code>RuntimeException</code>) then <code>catch (Exception e)</code> will do this. If you want to be <em>really</em> careful you can even catch <code>Throwable</code> in case there is a chance that <code>Error</code>s are being generated – this is relatively rare.</p> <p>If you actually have multiple tasks (or really anytime you are dealing with threads), you should consider using the <code>ExecutorService</code> classes. See the <a href="http://docs.oracle.com/javase/tutorial/essential/concurrency/exinter.html" rel="nofollow noreferrer">Java tutorial</a>.</p> <pre><code>// create a thread pool with 10 workers ExecutorService threadPool = Executors.newFixedThreadPool(10); // or you can create an open-ended thread pool // ExecutorService threadPool = Executors.newCachedThreadPool(); // define your jobs somehow threadPool.submit(new Class1()); threadPool.submit(new Class2()); ... // once we have submitted all jobs to the thread pool, it should be shutdown threadPool.shutdown(); </code></pre> <p>So instead of forking a thread to do multiple tasks, you start a thread pool and it starts threads as necessary to accomplish a bunch of tasks. If a task fails, you could certain submit another task to the pool although that's a slightly strange pattern.</p> <p>If you want to wait for all of the tasks to finish you'd use:</p> <pre><code>threadPool.awaitTermination(Long.MAX_VALUE, TimeUnit.MILLISECONDS); </code></pre>
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    1. POHow do I respawn threads if they die
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    1. POHow do I respawn threads if they die
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    1. COThis 'restart thread' is a recurring theme. I wonder what book/site has never heard of a loop? Such resources need exterminating before any more devs. get infected.
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      1. USMartin James
    2. CONo idea @MartinJames. Maybe a holdover from C where the memory might be in some unstable state or something?
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