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POHow to add breakpoints to Runnable classes
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  1. POHow to add breakpoints to Runnable classes
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    copied!<p>My <code>while(true)</code> is only running once, so I'm trying to add breakpoints to see what's going on, but they never seem to be reached within my <code>run()</code>. I'm using IntelliJ. In the debugger there's a "Threads" tab. Do I need to do something in that tab like select the right thread in order for my breakpoint to be reached? I also see thread names and am wondering how I can find the right thread in this list.</p> <pre><code>public class MyClass extends ServerWorkflowProcess&lt;OtherClass&gt; { private ExecutorService executorService = Executors.newSingleThreadExecutor(); ... @Override public void bootup() { logger.info("Booting up: " + this); BackgroundProcess backgroundImpositioner = new BackgroundProcess(this.getCollection()); executorService.submit(backgroundImpositioner); } @Override public void shutdown() { executorService.shutdown(); } } </code></pre> <p><strong>Background process</strong></p> <pre><code>public class BackgroundProcess implements Runnable { protected volatile Logger logger = Logger.getLogger(BackgroundImpositioner.class.getName()); Collection&lt;ImpositionWorkstation&gt; impositionWorkstations; public BackgroundImpositioner(Collection&lt;ImpositionWorkstation&gt; impositionWorkstation) { this.impositionWorkstations = impositionWorkstation; } public void run() { while(true) { logger.info("looping"); for (ImpositionWorkstation workstation : impositionWorkstations) { if (workstation.canAcceptWork()) { //go do work in another thread so we're not blocking this workstation.getWorkFromQueue(); try { workstation.doWork(); } catch (ImpositionException e) { logger.severe(e.getMessage()); } } } try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); logger.severe("Background impositioner was interrupted"); } } } } </code></pre> <p>Side note: the console shows "looping", so I know it gets executed once. The breakpoint never gets hit and it doesn't execute more than once.</p>
 

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