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Posted to dev@hc.apache.org by Ryan McKinley <ry...@gmail.com> on 2013/09/13 20:37:30 UTC

java 1.5?

Now that a release is out, is it worth asking about 1.5 support?

Obviously we should not change the system requirements unless there is a
clear gain.

Thoughts?

ryan

Re: Java 1.5 -> 1.6 or 1.7? was Re: java 1.5?

Posted by sebb <se...@gmail.com>.
On 25 March 2014 13:11, Oleg Kalnichevski <ol...@apache.org> wrote:
> On Tue, 2014-03-25 at 08:17 -0400, Gary Gregory wrote:
>> On Tue, Mar 25, 2014 at 7:48 AM, Dmitry Potapov <po...@gmail.com> wrote:
>>
>> > Gentlemen,
>> >
>> > Have you came to any conclusion concerning this?
>> > Currently AbstractMultiworkerIOReactor.execute(...) has finally block which
>> > calls doShutdown() which can throw exception itself (see HTTPCORE-376), so
>> > all information about current exception will be lost.
>> > One of the ways to fix this and have information concerning both exception
>> > is
>> > to use suppressed exceptions idiom implemented in Java 7 (probably with
>> > conjunction with try-with-resources), so I wish to know is it allowed to
>> > use
>> > Java 7 features in future patches.
>> >
>>
>> I do not think this has come up. I would be OK with Java 7 for trunk. Oleg?
>>
>
> I do not own HC. It is mainly an outlet for my personal frustration for
> having to write horrible software at work. We can upgrade whenever you
> folks feel like. But in my opinion we ought not do it for no reason.
> This decision should be made in a context of a development road map or
> some sort.
>
> I dumped my personal plans here
> https://wiki.apache.org/HttpComponents/HttpComponentsRoadmap
>
> We just upgraded HttpCore and HttpClient trunks to 1.6. I _personally_
> think 1.7 upgrade could wait until 4.5.

Likewise, I think we should be conservative when changing minimum Java
version, especially as HC is a relatively low level library.

If we were writing stand-alone software, that would be rather
different, as it would be much less likely to cause issues for end
users.
But even then, I would counsel against requiring the latest GA Java
version unless the application needs it.

> Oleg
>
>
>
>
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> To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> For additional commands, e-mail: dev-help@hc.apache.org
>

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Re: Java 1.5 -> 1.6 or 1.7? was Re: java 1.5?

Posted by Oleg Kalnichevski <ol...@apache.org>.
On Tue, 2014-03-25 at 08:17 -0400, Gary Gregory wrote:
> On Tue, Mar 25, 2014 at 7:48 AM, Dmitry Potapov <po...@gmail.com> wrote:
> 
> > Gentlemen,
> >
> > Have you came to any conclusion concerning this?
> > Currently AbstractMultiworkerIOReactor.execute(...) has finally block which
> > calls doShutdown() which can throw exception itself (see HTTPCORE-376), so
> > all information about current exception will be lost.
> > One of the ways to fix this and have information concerning both exception
> > is
> > to use suppressed exceptions idiom implemented in Java 7 (probably with
> > conjunction with try-with-resources), so I wish to know is it allowed to
> > use
> > Java 7 features in future patches.
> >
> 
> I do not think this has come up. I would be OK with Java 7 for trunk. Oleg?
> 

I do not own HC. It is mainly an outlet for my personal frustration for
having to write horrible software at work. We can upgrade whenever you
folks feel like. But in my opinion we ought not do it for no reason.
This decision should be made in a context of a development road map or
some sort.

I dumped my personal plans here 
https://wiki.apache.org/HttpComponents/HttpComponentsRoadmap

We just upgraded HttpCore and HttpClient trunks to 1.6. I _personally_
think 1.7 upgrade could wait until 4.5. 

Oleg




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Re: Java 1.5 -> 1.6 or 1.7? was Re: java 1.5?

Posted by Gary Gregory <ga...@gmail.com>.
On Tue, Mar 25, 2014 at 7:48 AM, Dmitry Potapov <po...@gmail.com> wrote:

> Gentlemen,
>
> Have you came to any conclusion concerning this?
> Currently AbstractMultiworkerIOReactor.execute(...) has finally block which
> calls doShutdown() which can throw exception itself (see HTTPCORE-376), so
> all information about current exception will be lost.
> One of the ways to fix this and have information concerning both exception
> is
> to use suppressed exceptions idiom implemented in Java 7 (probably with
> conjunction with try-with-resources), so I wish to know is it allowed to
> use
> Java 7 features in future patches.
>

I do not think this has come up. I would be OK with Java 7 for trunk. Oleg?

Gary


>
> --
> Thanks in advance,
> Dmitry Potapov
>
> On Sat, Sep 14, 2013 at 03:00:30PM +0200, Oleg Kalnichevski wrote:
> > On Sat, 2013-09-14 at 07:52 -0400, Gary Gregory wrote:
> > > On Sep 14, 2013, at 7:23, Oleg Kalnichevski <ol...@apache.org> wrote:
> > >
> > > > On Fri, 2013-09-13 at 17:25 -0400, Gary Gregory wrote:
> > > >> HttpClient 4.2 and 4.3 requires Java 5.
> > > >>
> > > >> Which components are you talking about?
> > > >>
> > > >> Gary
> > > >
> > > > I think the question is whether or not we should retain 1.5
> > > > compatibility for the next release series.
> > > >
> > > > I believe that 1.5 compatibility is becoming pointless. It is getting
> > > > increasingly difficult to maintain while hardly helping us expand our
> > > > user base. As far as know there is no even official way of obtaining
> a
> > > > 1.5 JDK from Oracle.
> > > >
> > > > However having said all that I also have to admit that Java 1.6 does
> not
> > > > really bring a lot in terms of new features. We probably should also
> > > > consider upgrading straight to Java 1.7 in order to get full try with
> > > > resources support and NIO2.
> > > >
> > > > I suggest that we take this discussion to the user list and start a
> poll
> > > > on a minimal JRE level for the next release series.
> > >
> > > It seems to me that 4.2.x and 4.3.x should stay on Java 5 and we can
> > > go to 6 or 7 for 4.4.
> > > >
> >
> > That goes without saying. 4.2 is no longer being actively developed and
> > 4.3 stays Java 1.5 compatible.
> >
> > Oleg
> >
> > > > Oleg
> > > >
> > > >>
> > > >> On Fri, Sep 13, 2013 at 2:37 PM, Ryan McKinley <ry...@gmail.com>
> wrote:
> > > >>
> > > >>> Now that a release is out, is it worth asking about 1.5 support?
> > > >>>
> > > >>> Obviously we should not change the system requirements unless
> there is a
> > > >>> clear gain.
> > > >>>
> > > >>> Thoughts?
> > > >>>
> > > >>> ryan
> > > >
> > > >
> > > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> > > > For additional commands, e-mail: dev-help@hc.apache.org
> > > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> > > For additional commands, e-mail: dev-help@hc.apache.org
> > >
> >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> > For additional commands, e-mail: dev-help@hc.apache.org
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> For additional commands, e-mail: dev-help@hc.apache.org
>
>


-- 
E-Mail: garydgregory@gmail.com | ggregory@apache.org
Java Persistence with Hibernate, Second Edition<http://www.manning.com/bauer3/>
JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
Spring Batch in Action <http://www.manning.com/templier/>
Blog: http://garygregory.wordpress.com
Home: http://garygregory.com/
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Re: Java 1.5 -> 1.6 or 1.7? was Re: java 1.5?

Posted by Oleg Kalnichevski <ol...@apache.org>.
On Tue, 2014-03-25 at 15:48 +0400, Dmitry Potapov wrote:
> Gentlemen,
> 
> Have you came to any conclusion concerning this?
> Currently AbstractMultiworkerIOReactor.execute(...) has finally block which
> calls doShutdown() which can throw exception itself (see HTTPCORE-376), so
> all information about current exception will be lost.

I/O reactors are complex beasts. If things go sideways, there can be
multiple exceptions in multiple places. I am not sure suppressed
exceptions introduced in Java 1.7 would help us much here. For that
reason the standard I/O reactors maintain an audit log. Suppressed
exceptions should be logged there.

Oleg 

> One of the ways to fix this and have information concerning both exception is
> to use suppressed exceptions idiom implemented in Java 7 (probably with
> conjunction with try-with-resources), so I wish to know is it allowed to use
> Java 7 features in future patches.
> 



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Re: Java 1.5 -> 1.6 or 1.7? was Re: java 1.5?

Posted by Dmitry Potapov <po...@gmail.com>.
Gentlemen,

Have you came to any conclusion concerning this?
Currently AbstractMultiworkerIOReactor.execute(...) has finally block which
calls doShutdown() which can throw exception itself (see HTTPCORE-376), so
all information about current exception will be lost.
One of the ways to fix this and have information concerning both exception is
to use suppressed exceptions idiom implemented in Java 7 (probably with
conjunction with try-with-resources), so I wish to know is it allowed to use
Java 7 features in future patches.

-- 
Thanks in advance,
Dmitry Potapov

On Sat, Sep 14, 2013 at 03:00:30PM +0200, Oleg Kalnichevski wrote:
> On Sat, 2013-09-14 at 07:52 -0400, Gary Gregory wrote:
> > On Sep 14, 2013, at 7:23, Oleg Kalnichevski <ol...@apache.org> wrote:
> > 
> > > On Fri, 2013-09-13 at 17:25 -0400, Gary Gregory wrote:
> > >> HttpClient 4.2 and 4.3 requires Java 5.
> > >>
> > >> Which components are you talking about?
> > >>
> > >> Gary
> > >
> > > I think the question is whether or not we should retain 1.5
> > > compatibility for the next release series.
> > >
> > > I believe that 1.5 compatibility is becoming pointless. It is getting
> > > increasingly difficult to maintain while hardly helping us expand our
> > > user base. As far as know there is no even official way of obtaining a
> > > 1.5 JDK from Oracle.
> > >
> > > However having said all that I also have to admit that Java 1.6 does not
> > > really bring a lot in terms of new features. We probably should also
> > > consider upgrading straight to Java 1.7 in order to get full try with
> > > resources support and NIO2.
> > >
> > > I suggest that we take this discussion to the user list and start a poll
> > > on a minimal JRE level for the next release series.
> > 
> > It seems to me that 4.2.x and 4.3.x should stay on Java 5 and we can
> > go to 6 or 7 for 4.4.
> > >
> 
> That goes without saying. 4.2 is no longer being actively developed and
> 4.3 stays Java 1.5 compatible.
> 
> Oleg
> 
> > > Oleg
> > >
> > >>
> > >> On Fri, Sep 13, 2013 at 2:37 PM, Ryan McKinley <ry...@gmail.com> wrote:
> > >>
> > >>> Now that a release is out, is it worth asking about 1.5 support?
> > >>>
> > >>> Obviously we should not change the system requirements unless there is a
> > >>> clear gain.
> > >>>
> > >>> Thoughts?
> > >>>
> > >>> ryan
> > >
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> > > For additional commands, e-mail: dev-help@hc.apache.org
> > >
> > 
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> > For additional commands, e-mail: dev-help@hc.apache.org
> > 
> 
> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> For additional commands, e-mail: dev-help@hc.apache.org
> 

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Re: Java 1.5 -> 1.6 or 1.7? was Re: java 1.5?

Posted by Oleg Kalnichevski <ol...@apache.org>.
On Sat, 2013-09-14 at 07:52 -0400, Gary Gregory wrote:
> On Sep 14, 2013, at 7:23, Oleg Kalnichevski <ol...@apache.org> wrote:
> 
> > On Fri, 2013-09-13 at 17:25 -0400, Gary Gregory wrote:
> >> HttpClient 4.2 and 4.3 requires Java 5.
> >>
> >> Which components are you talking about?
> >>
> >> Gary
> >
> > I think the question is whether or not we should retain 1.5
> > compatibility for the next release series.
> >
> > I believe that 1.5 compatibility is becoming pointless. It is getting
> > increasingly difficult to maintain while hardly helping us expand our
> > user base. As far as know there is no even official way of obtaining a
> > 1.5 JDK from Oracle.
> >
> > However having said all that I also have to admit that Java 1.6 does not
> > really bring a lot in terms of new features. We probably should also
> > consider upgrading straight to Java 1.7 in order to get full try with
> > resources support and NIO2.
> >
> > I suggest that we take this discussion to the user list and start a poll
> > on a minimal JRE level for the next release series.
> 
> It seems to me that 4.2.x and 4.3.x should stay on Java 5 and we can
> go to 6 or 7 for 4.4.
> >

That goes without saying. 4.2 is no longer being actively developed and
4.3 stays Java 1.5 compatible.

Oleg

> > Oleg
> >
> >>
> >> On Fri, Sep 13, 2013 at 2:37 PM, Ryan McKinley <ry...@gmail.com> wrote:
> >>
> >>> Now that a release is out, is it worth asking about 1.5 support?
> >>>
> >>> Obviously we should not change the system requirements unless there is a
> >>> clear gain.
> >>>
> >>> Thoughts?
> >>>
> >>> ryan
> >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> > For additional commands, e-mail: dev-help@hc.apache.org
> >
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> For additional commands, e-mail: dev-help@hc.apache.org
> 



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Re: Java 1.5 -> 1.6 or 1.7? was Re: java 1.5?

Posted by Gary Gregory <ga...@gmail.com>.
On Sep 14, 2013, at 7:23, Oleg Kalnichevski <ol...@apache.org> wrote:

> On Fri, 2013-09-13 at 17:25 -0400, Gary Gregory wrote:
>> HttpClient 4.2 and 4.3 requires Java 5.
>>
>> Which components are you talking about?
>>
>> Gary
>
> I think the question is whether or not we should retain 1.5
> compatibility for the next release series.
>
> I believe that 1.5 compatibility is becoming pointless. It is getting
> increasingly difficult to maintain while hardly helping us expand our
> user base. As far as know there is no even official way of obtaining a
> 1.5 JDK from Oracle.
>
> However having said all that I also have to admit that Java 1.6 does not
> really bring a lot in terms of new features. We probably should also
> consider upgrading straight to Java 1.7 in order to get full try with
> resources support and NIO2.
>
> I suggest that we take this discussion to the user list and start a poll
> on a minimal JRE level for the next release series.

It seems to me that 4.2.x and 4.3.x should stay on Java 5 and we can
go to 6 or 7 for 4.4.
>
> Oleg
>
>>
>> On Fri, Sep 13, 2013 at 2:37 PM, Ryan McKinley <ry...@gmail.com> wrote:
>>
>>> Now that a release is out, is it worth asking about 1.5 support?
>>>
>>> Obviously we should not change the system requirements unless there is a
>>> clear gain.
>>>
>>> Thoughts?
>>>
>>> ryan
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@hc.apache.org
> For additional commands, e-mail: dev-help@hc.apache.org
>

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Java 1.5 -> 1.6 or 1.7? was Re: java 1.5?

Posted by Oleg Kalnichevski <ol...@apache.org>.
On Fri, 2013-09-13 at 17:25 -0400, Gary Gregory wrote:
> HttpClient 4.2 and 4.3 requires Java 5.
> 
> Which components are you talking about?
> 
> Gary
> 

I think the question is whether or not we should retain 1.5
compatibility for the next release series.

I believe that 1.5 compatibility is becoming pointless. It is getting
increasingly difficult to maintain while hardly helping us expand our
user base. As far as know there is no even official way of obtaining a
1.5 JDK from Oracle. 

However having said all that I also have to admit that Java 1.6 does not
really bring a lot in terms of new features. We probably should also
consider upgrading straight to Java 1.7 in order to get full try with
resources support and NIO2.

I suggest that we take this discussion to the user list and start a poll
on a minimal JRE level for the next release series.

Oleg   

> 
> On Fri, Sep 13, 2013 at 2:37 PM, Ryan McKinley <ry...@gmail.com> wrote:
> 
> > Now that a release is out, is it worth asking about 1.5 support?
> >
> > Obviously we should not change the system requirements unless there is a
> > clear gain.
> >
> > Thoughts?
> >
> > ryan
> >
> 
> 
> 



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Re: java 1.5?

Posted by Gary Gregory <ga...@gmail.com>.
HttpClient 4.2 and 4.3 requires Java 5.

Which components are you talking about?

Gary


On Fri, Sep 13, 2013 at 2:37 PM, Ryan McKinley <ry...@gmail.com> wrote:

> Now that a release is out, is it worth asking about 1.5 support?
>
> Obviously we should not change the system requirements unless there is a
> clear gain.
>
> Thoughts?
>
> ryan
>



-- 
E-Mail: garydgregory@gmail.com | ggregory@apache.org
Java Persistence with Hibernate, Second Edition<http://www.manning.com/bauer3/>
JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
Spring Batch in Action <http://www.manning.com/templier/>
Blog: http://garygregory.wordpress.com
Home: http://garygregory.com/
Tweet! http://twitter.com/GaryGregory