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Groups > comp.lang.java.programmer > #18934

Re: Interrupted exception chaining

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On 25/09/2012 12:25, raphfrk@gmail.com allegedly wrote:
> Is there a recommended way of "chaining" interrupted exceptions?
> 
> This is to implement a method call that doesn't throw an interrupted exception, but which calls a method which can be interrupted.
> 
> public void uninterruptableWait(Object c) {
>     boolean done = false;
>     boolean interrupted = false;
>     synchronized (c) {
>         while (!done) {
>             try {
>                 c.wait();
>                 done = true;
>             } catch (InterrupedException ie) {
>                 interrupted = true;
>             }
>         }
>     }
>     if (interrupted) {
>         Thread.currentThread().interrupt();
>     }
> }
> 
> If that interrupt was unexpected, and causes a stack trace, then it would be nice if it could include the details from the thrown exception.
> 
> Is there a better way to do the above?

a) When catching an InterruptedException, always, always call
Thread.currentThread().interrupt() in the catch block. Always. Unless
you know what you're doing.

b) If you want a stacktrace, just print a stacktrace. Like, in the catch
block. But note that by definition, interruptedness is a state, not an
action. The only thing a stacktrace will tell you is where in the code
that state was /checked/, not where it was /set/.

-- 
DF.

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Interrupted exception chaining raphfrk@gmail.com - 2012-09-25 03:25 -0700
  Re: Interrupted exception chaining Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-09-25 08:56 -0400
  Re: Interrupted exception chaining markspace <-@.> - 2012-09-25 08:33 -0700
    Re: Interrupted exception chaining Ivan Ryan <ivan.ryan@gmail.com> - 2012-09-25 09:28 -0700
      Re: Interrupted exception chaining Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-09-25 13:12 -0400
      Re: Interrupted exception chaining markspace <-@.> - 2012-09-25 12:00 -0700
  Re: Interrupted exception chaining Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-09-25 09:22 -0700
    Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-25 22:26 +0200
      Re: Interrupted exception chaining markspace <-@.> - 2012-09-25 13:37 -0700
        Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-25 22:47 +0200
          Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-25 22:53 +0200
            Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-25 22:53 +0200
          Re: Interrupted exception chaining markspace <-@.> - 2012-09-25 14:08 -0700
            Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-25 23:23 +0200
              Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-25 23:24 +0200
              Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-25 23:32 +0200
            Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-25 23:42 +0200
              Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-25 23:48 +0200
              Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-25 23:55 +0200
                Re: Interrupted exception chaining markspace <-@.> - 2012-09-25 15:33 -0700
      Re: Interrupted exception chaining Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-09-25 21:43 -0400
  Re: Interrupted exception chaining Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2012-09-26 01:43 +0200
    Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-26 10:24 +0200
      Re: Interrupted exception chaining Jan Burse <janburse@fastmail.fm> - 2012-09-26 10:32 +0200
        Re: Interrupted exception chaining Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2012-09-26 16:26 +0200

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