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Groups > comp.lang.java.programmer > #18921

Re: Interrupted exception chaining

From Jan Burse <janburse@fastmail.fm>
Newsgroups comp.lang.java.programmer
Subject Re: Interrupted exception chaining
Date 2012-09-25 22:53 +0200
Organization albasani.net
Message-ID <k3t5k1$i1e$2@news.albasani.net> (permalink)
References <d203b18b-61ce-439e-9b1f-9cf056c1d161@googlegroups.com> <ETk8s.3$kz7.0@newsfe02.iad> <k3t429$f84$1@news.albasani.net> <k3t4lq$tmk$1@dont-email.me> <k3t59s$i1e$1@news.albasani.net>

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Jan Burse schrieb:
> If it doesn't we cannot distinguish between a spurious wait (*) and
> a wait by a notify.

Corr.:
If it doesn't we cannot distinguish between a spurious wakeup (*) and
a wakeup by a notify.

This is how the notify should be done, it needs also to
use a synchronized():

    public void signalDone() {
       synchronized(lock) {
           done=true;
           lock.notifyAll();
       }
    }

I prefer using notifyAll() from the beginning, since the condition
that is signaled can get more and more complex over the time, and
it might be that some threads will or will not react to it, so that
notify() might pick one which will not react, and then the signal
is spurious.

Bye

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Thread

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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