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Groups > comp.lang.java.programmer > #13472

Re: trigger static init

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Lew <lewbloch@gmail.com> wrote:
> Referencing the 'class' literal does not incur class initialization.

from JLS 12.4.1:
A class [...] T is initialized immediately before first [...]
  T is a class and an instance of T is created.
  T is a class and a static method declared by T is invoked.
  A static field declared by T is assigned.
  A static field declared by T is used [ ... and not constant ... ]
  T is a top-level class, and an assert statement (§14.10) lexically
          nested within T is executed. 

Does using a class-literal <T.class> in "synchronized(T.class) {...}" count
in for implicitly using the monitor-field of the Class<T>-instance, or is
it strictly undefined (or defined somewhere else)?

Btw., I don't understand the point about assert. If the assert is
lexically nested in T and gets executed, then I'd have naively thought,
that one of the first two points would necessarily have happened,
anyway, before the assert could be reached. What am I missing here?

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Thread

trigger static init Roedy Green <see_website@mindprod.com.invalid> - 2012-04-08 23:28 -0700
  Re: trigger static init Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2012-04-09 10:32 +0300
    Re: trigger static init Roedy Green <see_website@mindprod.com.invalid> - 2012-04-09 06:09 -0700
      Re: trigger static init markspace <-@.> - 2012-04-09 09:19 -0700
      Re: trigger static init Lew <lewbloch@gmail.com> - 2012-04-09 10:33 -0700
    Re: trigger static init Lew <lewbloch@gmail.com> - 2012-04-09 10:36 -0700
      Re: trigger static init Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-04-11 12:52 +0000
        Re: trigger static init Patricia Shanahan <pats@acm.org> - 2012-04-11 07:04 -0700
          Re: trigger static init Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-04-11 15:30 +0000
            Re: trigger static init Patricia Shanahan <pats@acm.org> - 2012-04-11 09:32 -0700
              Re: trigger static init Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-04-22 16:09 +0000
          Re: trigger static init Steven Simpson <ss@domain.invalid> - 2012-04-12 07:38 +0100
            Re: trigger static init Patricia Shanahan <pats@acm.org> - 2012-04-12 00:36 -0700
        Re: trigger static init Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-04-11 09:39 -0500
          Re: trigger static init Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-04-11 14:56 +0000
          Re: trigger static init Lew <noone@lewscanon.com> - 2012-04-11 08:08 -0700
  Re: trigger static init glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-04-09 09:18 +0000
    Re: trigger static init Roedy Green <see_website@mindprod.com.invalid> - 2012-04-09 04:57 -0700
    Re: trigger static init Lew <lewbloch@gmail.com> - 2012-04-09 10:31 -0700
  Re: trigger static init Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-04-10 12:22 -0700

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