It may be that the spec says the FileDescriptor has to point at a FileInputStream, in which case System.out would have to wrap it.
Ralph > On May 25, 2016, at 5:43 AM, Ralph Goers <ralph.go...@dslextreme.com> wrote: > > You are missing the point. What does IBM's JDK do? What does the gnu JDK > do? What does Android do? You can only rely on what the spec says. I > haven't read the spec, but the javadoc certainly says nothing. > > Ralph > >> On May 25, 2016, at 4:09 AM, Mikael Ståldal <mikael.stal...@magine.com> >> wrote: >> >> http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/lang/System.java#1087 >> >>> On Wed, May 25, 2016 at 12:51 PM, Ralph Goers <ralph.go...@dslextreme.com> >>> wrote: >>> I haven't looked at the source, but the point is that FileDescriptor gives >>> no guarantees what it is referencing. >>> >>> Sent from my iPad >>> >>>> On May 25, 2016, at 12:49 AM, Mikael Ståldal <mikael.stal...@magine.com> >>>> wrote: >>>> >>>> > but I would guess the the FileDescriptor may just be a reference to the >>>> > PrintStream. >>>> >>>> I think it's the other way around, System.out is a wrapper around >>>> FileDescriptor.out. Look at the source code for java.lang.System in JDK 8. >>>> >>>>> On Tue, May 24, 2016 at 7:53 PM, Ralph Goers <ralph.go...@dslextreme.com> >>>>> wrote: >>>>> The javadoc for FileDescriptor is fairly ambiguous. I’d have to look at >>>>> the code, but I would guess the the FileDescriptor may just be a >>>>> reference to the PrintStream. I really don’t think you can count on what >>>>> it points to. I would also worry about us trying to use the >>>>> FileDescriptor while the application might be writing to System.out. >>>>> >>>>> Ralph >>>>> >>>>>> On May 24, 2016, at 10:30 AM, Remko Popma <remko.po...@gmail.com> wrote: >>>>>> >>>>>> >>>>>>> On Tuesday, May 24, 2016 at 11:27:33 PM UTC+9, Mikael Ståldal wrote: >>>>>>> Could we avoid that by using FileDescriptor.out / FileDescriptor.err >>>>>>> instead of System.out / System.err ? >>>>>>> >>>>>>>> On Tue, May 24, 2016 at 4:09 PM, Matt Sicker <boa...@gmail.com> wrote: >>>>>>>> All the PrintStream.write() methods have locks. >>>>>>>> >>>>>>>>> On 24 May 2016 at 02:56, Mikael Ståldal <mikael....@magine.com> wrote: >>>>>>>>> Do we know why Console has so bad performance (compared to File)? Is >>>>>>>>> this true also if you redirect STDOUT to a file? >>>>>>>>> >>>>>>>>>> and a preview of the updated performance page is here: >>>>>>>>>> http://home.apache.org/~rpopma/log4j/2.6/performance.html >>>>>> >>>>>> I think these are really interesting questions, and I am curious if >>>>>> anyone on this list can share their insights >>>>>> >>>>>> >>>>>> --------------------------------------------------------------------- >>>>>> To unsubscribe, e-mail: log4j-dev-unsubscr...@logging.apache.org >>>>>> For additional commands, e-mail: log4j-dev-h...@logging.apache.org >>>>> >>>> >>>> >>>> >>>> -- >>>> >>>> >>>> Mikael Ståldal >>>> Senior software developer >>>> >>>> Magine TV >>>> mikael.stal...@magine.com >>>> Grev Turegatan 3 | 114 46 Stockholm, Sweden | www.magine.com >>>> >>>> Privileged and/or Confidential Information may be contained in this >>>> message. If you are not the addressee indicated in this message >>>> (or responsible for delivery of the message to such a person), you may not >>>> copy or deliver this message to anyone. In such case, >>>> you should destroy this message and kindly notify the sender by reply >>>> email. >> >> >> >> -- >> >> >> Mikael Ståldal >> Senior software developer >> >> Magine TV >> mikael.stal...@magine.com >> Grev Turegatan 3 | 114 46 Stockholm, Sweden | www.magine.com >> >> Privileged and/or Confidential Information may be contained in this message. >> If you are not the addressee indicated in this message >> (or responsible for delivery of the message to such a person), you may not >> copy or deliver this message to anyone. In such case, >> you should destroy this message and kindly notify the sender by reply email. >>
