java - Maximum wait time in queue in ExecutorService -

is there way set maximum wait time on executor services ?!

for example when pass 2 while true runnable singlethreadexecutor first 1 work forever , , second 1 wait ever.

i expect got timeoutexception second runnable.

public static void main(string[] args) throws ioexception {         executorservice executor = executors.newsinglethreadexecutor();         (int = 0; < 2; i++) {             int finali = i;             executor.execute(new runnable() {                 @override                 public void run() {                     while (true) {                         try {                             system.out.println("#"+ finali + " runnable !");                             thread.sleep(1000);                         } catch (exception e) {                             e.printstacktrace();                         }                     }                 }             });         }     } 

is there way set maximum wait time on executor services ?!

if talking waiting job start run, answer unfortunately "not easily". there ways can using queue in threadpoolexecutor considered hacks , aren't recommended. extend threadpoolexecutor complicated.

one [better] solution manage queue externally.

// synchronous queue waits take() queue before returning final blockingqueue<runnable> jobqueue = new synchronousqueue<runnable>(); ... // submit of threads jobs queue run executor.execute(new runnable() {     @override     public void run() {          while (!thread.currentthread.isinterrupted()) {               try {                   runnable job = jobqueue.take();                   job.run();               } catch (interruptedexception ie) {                   // recommended                   thread.currentthread().interrupt();                   return;               }          }     } }); ... // can try add job queue if full, offer may timeout if (!queue.offer(new runnable() { ... }, 2000, timeunit.seconds)) {     // timed out } 

hope helps.