Groups > comp.lang.java.programmer > #8479

Re: Avoid creating a stacktrace prior to JDK 1.7

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From	Stanimir Stamenkov <s7an10@netscape.net>
Newsgroups	comp.lang.java.programmer
Subject	Re: Avoid creating a stacktrace prior to JDK 1.7
Date	Sun, 02 Oct 2011 13:14:00 +0300
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Sat, 1 Oct 2011 20:06:23 -0700 (PDT), /Lew/:
> Stanimir Stamenkov wrote:
>
>> You may be right, but I've read in the Javadoc for
>> java.util.logging.Logger, for example
>> <http://download.oracle.com/javase/6/docs/api/java/util/logging/Logger.html>:
>> [...]
>> So it seems stack trace information is not guaranteed to be
>> available to user code.  This detail may be given somewhere in the
>> language or VM specifications.
>
> Stack trace information is available; the difficulty to which the
> documentation alludes is that the stack might be in an odd state,
> not that it wouldn't be available.  So it seems stack trace
> information is guaranteed to be available.  Just not necessarily
> useful in the way you'd like.

So while Throwable.getStackTrace() might not be null it could be 
empty which effectively means no stack trace information available 
<http://download.oracle.com/javase/6/docs/api/java/lang/Throwable.html#getStackTrace%28%29>:

| Some virtual machines may, under some circumstances, omit one or
| more stack frames from the stack trace. In the extreme case, a
| virtual machine that has no stack trace information concerning
| this throwable is permitted to return a zero-length array from
| this method.

-- 
Stanimir

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Avoid creating a stacktrace prior to JDK 1.7 Jan Burse <janburse@fastmail.fm> - 2011-09-30 15:57 +0200
  Re: Avoid creating a stacktrace prior to JDK 1.7 Stanimir Stamenkov <s7an10@netscape.net> - 2011-10-01 13:27 +0300
    Re: Avoid creating a stacktrace prior to JDK 1.7 Jan Burse <janburse@fastmail.fm> - 2011-10-01 13:22 +0200
      Re: Avoid creating a stacktrace prior to JDK 1.7 Lew <lewbloch@gmail.com> - 2011-10-01 09:10 -0700
        Re: Avoid creating a stacktrace prior to JDK 1.7 Stanimir Stamenkov <s7an10@netscape.net> - 2011-10-01 20:31 +0300
        Re: Avoid creating a stacktrace prior to JDK 1.7 Jan Burse <janburse@fastmail.fm> - 2011-10-01 20:02 +0200
          Re: Avoid creating a stacktrace prior to JDK 1.7 Lew <lewbloch@gmail.com> - 2011-10-01 12:21 -0700
            Re: Avoid creating a stacktrace prior to JDK 1.7 Jan Burse <janburse@fastmail.fm> - 2011-10-01 22:04 +0200
              Re: Avoid creating a stacktrace prior to JDK 1.7 Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-10-01 16:24 -0400
                Re: Avoid creating a stacktrace prior to JDK 1.7 Jan Burse <janburse@fastmail.fm> - 2011-10-01 23:14 +0200
                Re: Avoid creating a stacktrace prior to JDK 1.7 Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-10-01 17:28 -0400
                Re: Avoid creating a stacktrace prior to JDK 1.7 Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-10-01 23:45 +0000
                Re: Avoid creating a stacktrace prior to JDK 1.7 Stanimir Stamenkov <s7an10@netscape.net> - 2011-10-02 00:58 +0300
                Re: Avoid creating a stacktrace prior to JDK 1.7 Jan Burse <janburse@fastmail.fm> - 2011-10-02 02:04 +0200
                Re: Avoid creating a stacktrace prior to JDK 1.7 Lew <lewbloch@gmail.com> - 2011-10-01 20:06 -0700
                Re: Avoid creating a stacktrace prior to JDK 1.7 Stanimir Stamenkov <s7an10@netscape.net> - 2011-10-02 13:14 +0300
                Re: Avoid creating a stacktrace prior to JDK 1.7 Lew <lewbloch@gmail.com> - 2011-10-02 08:37 -0700
                Re: Avoid creating a stacktrace prior to JDK 1.7 Jan Burse <janburse@fastmail.fm> - 2011-10-02 20:26 +0200
                Re: Avoid creating a stacktrace prior to JDK 1.7 Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-10-02 17:51 -0400
                Re: Avoid creating a stacktrace prior to JDK 1.7 Jan Burse <janburse@fastmail.fm> - 2011-10-03 01:32 +0200
    Re: Avoid creating a stacktrace prior to JDK 1.7 Stanimir Stamenkov <s7an10@netscape.net> - 2011-10-01 20:19 +0300
      Re: Avoid creating a stacktrace prior to JDK 1.7 Jan Burse <janburse@fastmail.fm> - 2011-10-01 20:04 +0200
        Re: Avoid creating a stacktrace prior to JDK 1.7 Stanimir Stamenkov <s7an10@netscape.net> - 2011-10-01 21:15 +0300

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