[DISCUSSION] Java 11 for Ignite 3.0 development

[agura]

Igniters,

We already had some discussion about using modern Java versions for
Ignite 3.0 development [1] but we still don't have consensus.
As I see from this discussion the strongest argument for Java 11 is
the fact that Java 11 is the latest LTS release which will have
premier support until September 2023. So I don't see any reason for
preferring any other version of Java at this moment.

The purpose of this thread is to gather opinions about using Java 11
in the Ignite 3.0 project and, eventually, reach a consensus on this.

I want to share my several arguments in favor of abandoning Java 8 and
preferring Java 11:

* Java 8 has gone through the End of Public Updates process for legacy
releases. So it doesn't make sense to start new development on Java 8.

* Java 9+ brings Jigsaw modularization which allows us to have more
fine-grained structure of Ignite modules and APIs in the future.

* Ignite actively uses Unsafe functionality which, firstly, isn't
public, and secondly, leads to problems with running Ignite under Java
9+ (modularization which requires dozens of command-line options in
order to forcibly export corresponding packages) and GraalVM. Such a
situation could be described as bad user experience and we should fix
it. Var handles [2] could be used for solving described problems.

* Java 9+ introduces Flight Recorder API [3] which could be used in
the Ignite project for lightweight profiling of internal processes.

Please, share your opinions, objections and ideas about this topic. I
hope we will not have serious disagreements and the consensus will be
reached quickly.


1. http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
2. https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
3. https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html

[Alexey Zinoviev]

I totally support Java 11 for development. It's time to go forward

вт, 8 дек. 2020 г. в 11:40, Andrey Gura <[hidden email]>:

> Igniters,
>
> We already had some discussion about using modern Java versions for
> Ignite 3.0 development [1] but we still don't have consensus.
> As I see from this discussion the strongest argument for Java 11 is
> the fact that Java 11 is the latest LTS release which will have
> premier support until September 2023. So I don't see any reason for
> preferring any other version of Java at this moment.
>
> The purpose of this thread is to gather opinions about using Java 11
> in the Ignite 3.0 project and, eventually, reach a consensus on this.
>
> I want to share my several arguments in favor of abandoning Java 8 and
> preferring Java 11:
>
> * Java 8 has gone through the End of Public Updates process for legacy
> releases. So it doesn't make sense to start new development on Java 8.
>
> * Java 9+ brings Jigsaw modularization which allows us to have more
> fine-grained structure of Ignite modules and APIs in the future.
>
> * Ignite actively uses Unsafe functionality which, firstly, isn't
> public, and secondly, leads to problems with running Ignite under Java
> 9+ (modularization which requires dozens of command-line options in
> order to forcibly export corresponding packages) and GraalVM. Such a
> situation could be described as bad user experience and we should fix
> it. Var handles [2] could be used for solving described problems.
>
> * Java 9+ introduces Flight Recorder API [3] which could be used in
> the Ignite project for lightweight profiling of internal processes.
>
> Please, share your opinions, objections and ideas about this topic. I
> hope we will not have serious disagreements and the consensus will be
> reached quickly.
>
>
> 1.
> http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
> 2.
> https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
> 3.
> https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html
>

[Pavel Tupitsyn]

+1, Java 11 seems to be the only right choice at the moment.

On Tue, Dec 8, 2020 at 12:08 PM Alexey Zinoviev <[hidden email]>
wrote:

> I totally support Java 11 for development. It's time to go forward
>
> вт, 8 дек. 2020 г. в 11:40, Andrey Gura <[hidden email]>:
>
> > Igniters,
> >
> > We already had some discussion about using modern Java versions for
> > Ignite 3.0 development [1] but we still don't have consensus.
> > As I see from this discussion the strongest argument for Java 11 is
> > the fact that Java 11 is the latest LTS release which will have
> > premier support until September 2023. So I don't see any reason for
> > preferring any other version of Java at this moment.
> >
> > The purpose of this thread is to gather opinions about using Java 11
> > in the Ignite 3.0 project and, eventually, reach a consensus on this.
> >
> > I want to share my several arguments in favor of abandoning Java 8 and
> > preferring Java 11:
> >
> > * Java 8 has gone through the End of Public Updates process for legacy
> > releases. So it doesn't make sense to start new development on Java 8.
> >
> > * Java 9+ brings Jigsaw modularization which allows us to have more
> > fine-grained structure of Ignite modules and APIs in the future.
> >
> > * Ignite actively uses Unsafe functionality which, firstly, isn't
> > public, and secondly, leads to problems with running Ignite under Java
> > 9+ (modularization which requires dozens of command-line options in
> > order to forcibly export corresponding packages) and GraalVM. Such a
> > situation could be described as bad user experience and we should fix
> > it. Var handles [2] could be used for solving described problems.
> >
> > * Java 9+ introduces Flight Recorder API [3] which could be used in
> > the Ignite project for lightweight profiling of internal processes.
> >
> > Please, share your opinions, objections and ideas about this topic. I
> > hope we will not have serious disagreements and the consensus will be
> > reached quickly.
> >
> >
> > 1.
> >
> http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
> > 2.
> >
> https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
> > 3.
> >
> https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html
> >
>

[fi1ipx]

Hello!

Andrey's arguments are solid.

On Tue, Dec 8, 2020 at 12:23 PM Pavel Tupitsyn <[hidden email]> wrote:

> +1, Java 11 seems to be the only right choice at the moment.
>
> On Tue, Dec 8, 2020 at 12:08 PM Alexey Zinoviev <[hidden email]>
> wrote:
>
> > I totally support Java 11 for development. It's time to go forward
> >
> > вт, 8 дек. 2020 г. в 11:40, Andrey Gura <[hidden email]>:
> >
> > > Igniters,
> > >
> > > We already had some discussion about using modern Java versions for
> > > Ignite 3.0 development [1] but we still don't have consensus.
> > > As I see from this discussion the strongest argument for Java 11 is
> > > the fact that Java 11 is the latest LTS release which will have
> > > premier support until September 2023. So I don't see any reason for
> > > preferring any other version of Java at this moment.
> > >
> > > The purpose of this thread is to gather opinions about using Java 11
> > > in the Ignite 3.0 project and, eventually, reach a consensus on this.
> > >
> > > I want to share my several arguments in favor of abandoning Java 8 and
> > > preferring Java 11:
> > >
> > > * Java 8 has gone through the End of Public Updates process for legacy
> > > releases. So it doesn't make sense to start new development on Java 8.
> > >
> > > * Java 9+ brings Jigsaw modularization which allows us to have more
> > > fine-grained structure of Ignite modules and APIs in the future.
> > >
> > > * Ignite actively uses Unsafe functionality which, firstly, isn't
> > > public, and secondly, leads to problems with running Ignite under Java
> > > 9+ (modularization which requires dozens of command-line options in
> > > order to forcibly export corresponding packages) and GraalVM. Such a
> > > situation could be described as bad user experience and we should fix
> > > it. Var handles [2] could be used for solving described problems.
> > >
> > > * Java 9+ introduces Flight Recorder API [3] which could be used in
> > > the Ignite project for lightweight profiling of internal processes.
> > >
> > > Please, share your opinions, objections and ideas about this topic. I
> > > hope we will not have serious disagreements and the consensus will be
> > > reached quickly.
> > >
> > >
> > > 1.
> > >
> >
> http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
> > > 2.
> > >
> >
> https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
> > > 3.
> > >
> >
> https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html
> > >
> >
>

[Kirill Tkalenko]

+1

08.12.2020, 12:48, "Philipp Masharov" <[hidden email]>:

> Hello!
>
> Andrey's arguments are solid.
>
> On Tue, Dec 8, 2020 at 12:23 PM Pavel Tupitsyn <[hidden email]> wrote:
>
>>  +1, Java 11 seems to be the only right choice at the moment.
>>
>>  On Tue, Dec 8, 2020 at 12:08 PM Alexey Zinoviev <[hidden email]>
>>  wrote:
>>
>>  > I totally support Java 11 for development. It's time to go forward
>>  >
>>  > вт, 8 дек. 2020 г. в 11:40, Andrey Gura <[hidden email]>:
>>  >
>>  > > Igniters,
>>  > >
>>  > > We already had some discussion about using modern Java versions for
>>  > > Ignite 3.0 development [1] but we still don't have consensus.
>>  > > As I see from this discussion the strongest argument for Java 11 is
>>  > > the fact that Java 11 is the latest LTS release which will have
>>  > > premier support until September 2023. So I don't see any reason for
>>  > > preferring any other version of Java at this moment.
>>  > >
>>  > > The purpose of this thread is to gather opinions about using Java 11
>>  > > in the Ignite 3.0 project and, eventually, reach a consensus on this.
>>  > >
>>  > > I want to share my several arguments in favor of abandoning Java 8 and
>>  > > preferring Java 11:
>>  > >
>>  > > * Java 8 has gone through the End of Public Updates process for legacy
>>  > > releases. So it doesn't make sense to start new development on Java 8.
>>  > >
>>  > > * Java 9+ brings Jigsaw modularization which allows us to have more
>>  > > fine-grained structure of Ignite modules and APIs in the future.
>>  > >
>>  > > * Ignite actively uses Unsafe functionality which, firstly, isn't
>>  > > public, and secondly, leads to problems with running Ignite under Java
>>  > > 9+ (modularization which requires dozens of command-line options in
>>  > > order to forcibly export corresponding packages) and GraalVM. Such a
>>  > > situation could be described as bad user experience and we should fix
>>  > > it. Var handles [2] could be used for solving described problems.
>>  > >
>>  > > * Java 9+ introduces Flight Recorder API [3] which could be used in
>>  > > the Ignite project for lightweight profiling of internal processes.
>>  > >
>>  > > Please, share your opinions, objections and ideas about this topic. I
>>  > > hope we will not have serious disagreements and the consensus will be
>>  > > reached quickly.
>>  > >
>>  > >
>>  > > 1.
>>  > >
>>  >
>>  http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
>>  > > 2.
>>  > >
>>  >
>>  https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
>>  > > 3.
>>  > >
>>  >
>>  https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html
>>  > >
>>  >

[Nikolay Izhikov-2]

+1 for using java 11.

> 8 дек. 2020 г., в 13:18, ткаленко кирилл <[hidden email]> написал(а):
>
> +1
>
> 08.12.2020, 12:48, "Philipp Masharov" <[hidden email]>:
>> Hello!
>>
>> Andrey's arguments are solid.
>>
>> On Tue, Dec 8, 2020 at 12:23 PM Pavel Tupitsyn <[hidden email]> wrote:
>>
>>>  +1, Java 11 seems to be the only right choice at the moment.
>>>
>>>  On Tue, Dec 8, 2020 at 12:08 PM Alexey Zinoviev <[hidden email]>
>>>  wrote:
>>>
>>>  > I totally support Java 11 for development. It's time to go forward
>>>  >
>>>  > вт, 8 дек. 2020 г. в 11:40, Andrey Gura <[hidden email]>:
>>>  >
>>>  > > Igniters,
>>>  > >
>>>  > > We already had some discussion about using modern Java versions for
>>>  > > Ignite 3.0 development [1] but we still don't have consensus.
>>>  > > As I see from this discussion the strongest argument for Java 11 is
>>>  > > the fact that Java 11 is the latest LTS release which will have
>>>  > > premier support until September 2023. So I don't see any reason for
>>>  > > preferring any other version of Java at this moment.
>>>  > >
>>>  > > The purpose of this thread is to gather opinions about using Java 11
>>>  > > in the Ignite 3.0 project and, eventually, reach a consensus on this.
>>>  > >
>>>  > > I want to share my several arguments in favor of abandoning Java 8 and
>>>  > > preferring Java 11:
>>>  > >
>>>  > > * Java 8 has gone through the End of Public Updates process for legacy
>>>  > > releases. So it doesn't make sense to start new development on Java 8.
>>>  > >
>>>  > > * Java 9+ brings Jigsaw modularization which allows us to have more
>>>  > > fine-grained structure of Ignite modules and APIs in the future.
>>>  > >
>>>  > > * Ignite actively uses Unsafe functionality which, firstly, isn't
>>>  > > public, and secondly, leads to problems with running Ignite under Java
>>>  > > 9+ (modularization which requires dozens of command-line options in
>>>  > > order to forcibly export corresponding packages) and GraalVM. Such a
>>>  > > situation could be described as bad user experience and we should fix
>>>  > > it. Var handles [2] could be used for solving described problems.
>>>  > >
>>>  > > * Java 9+ introduces Flight Recorder API [3] which could be used in
>>>  > > the Ignite project for lightweight profiling of internal processes.
>>>  > >
>>>  > > Please, share your opinions, objections and ideas about this topic. I
>>>  > > hope we will not have serious disagreements and the consensus will be
>>>  > > reached quickly.
>>>  > >
>>>  > >
>>>  > > 1.
>>>  > >
>>>  >
>>>  http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
>>>  > > 2.
>>>  > >
>>>  >
>>>  https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
>>>  > > 3.
>>>  > >
>>>  >
>>>  https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html
>>>  > >
>>>  >

[Данилов Семён]

+1 for sure. AFAIK, the only thing holding us back from using Java 11 is the dominance of Java 8, but I'm sure that by the time Ignite 3 is GA, there will be much fewer Java 8 users if any significant number at all. By the by, Ignite's sources need minimal effort to be able to be compiled with Java 11 as a target.

08.12.2020, 15:00, "Nikolay Izhikov" <[hidden email]>:

> +1 for using java 11.
>
>>  8 дек. 2020 г., в 13:18, ткаленко кирилл <[hidden email]> написал(а):
>>
>>  +1
>>
>>  08.12.2020, 12:48, "Philipp Masharov" <[hidden email]>:
>>>  Hello!
>>>
>>>  Andrey's arguments are solid.
>>>
>>>  On Tue, Dec 8, 2020 at 12:23 PM Pavel Tupitsyn <[hidden email]> wrote:
>>>
>>>>   +1, Java 11 seems to be the only right choice at the moment.
>>>>
>>>>   On Tue, Dec 8, 2020 at 12:08 PM Alexey Zinoviev <[hidden email]>
>>>>   wrote:
>>>>
>>>>   > I totally support Java 11 for development. It's time to go forward
>>>>   >
>>>>   > вт, 8 дек. 2020 г. в 11:40, Andrey Gura <[hidden email]>:
>>>>   >
>>>>   > > Igniters,
>>>>   > >
>>>>   > > We already had some discussion about using modern Java versions for
>>>>   > > Ignite 3.0 development [1] but we still don't have consensus.
>>>>   > > As I see from this discussion the strongest argument for Java 11 is
>>>>   > > the fact that Java 11 is the latest LTS release which will have
>>>>   > > premier support until September 2023. So I don't see any reason for
>>>>   > > preferring any other version of Java at this moment.
>>>>   > >
>>>>   > > The purpose of this thread is to gather opinions about using Java 11
>>>>   > > in the Ignite 3.0 project and, eventually, reach a consensus on this.
>>>>   > >
>>>>   > > I want to share my several arguments in favor of abandoning Java 8 and
>>>>   > > preferring Java 11:
>>>>   > >
>>>>   > > * Java 8 has gone through the End of Public Updates process for legacy
>>>>   > > releases. So it doesn't make sense to start new development on Java 8.
>>>>   > >
>>>>   > > * Java 9+ brings Jigsaw modularization which allows us to have more
>>>>   > > fine-grained structure of Ignite modules and APIs in the future.
>>>>   > >
>>>>   > > * Ignite actively uses Unsafe functionality which, firstly, isn't
>>>>   > > public, and secondly, leads to problems with running Ignite under Java
>>>>   > > 9+ (modularization which requires dozens of command-line options in
>>>>   > > order to forcibly export corresponding packages) and GraalVM. Such a
>>>>   > > situation could be described as bad user experience and we should fix
>>>>   > > it. Var handles [2] could be used for solving described problems.
>>>>   > >
>>>>   > > * Java 9+ introduces Flight Recorder API [3] which could be used in
>>>>   > > the Ignite project for lightweight profiling of internal processes.
>>>>   > >
>>>>   > > Please, share your opinions, objections and ideas about this topic. I
>>>>   > > hope we will not have serious disagreements and the consensus will be
>>>>   > > reached quickly.
>>>>   > >
>>>>   > >
>>>>   > > 1.
>>>>   > >
>>>>   >
>>>>   http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
>>>>   > > 2.
>>>>   > >
>>>>   >
>>>>   https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
>>>>   > > 3.
>>>>   > >
>>>>   >
>>>>   https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html
>>>>   > >
>>>>   >

[Ivan Bessonov]

This is an awesome idea.

Honestly, I can't come up with strong technical arguments for Java 11 as a
source level, I had no chance to work with it long enough, but it feels
like a
proper time to move to a "modern" technology. Subjectively I can say that
Java 11 has a lot of good optimization and Ignite should run better on it.
So
it makes no sense to compile for 8 but recommend 11, you know.

вт, 8 дек. 2020 г. в 21:16, Данилов Семён <[hidden email]>:

> +1 for sure. AFAIK, the only thing holding us back from using Java 11 is
> the dominance of Java 8, but I'm sure that by the time Ignite 3 is GA,
> there will be much fewer Java 8 users if any significant number at all. By
> the by, Ignite's sources need minimal effort to be able to be compiled with
> Java 11 as a target.
>
> 08.12.2020, 15:00, "Nikolay Izhikov" <[hidden email]>:
> > +1 for using java 11.
> >
> >>  8 дек. 2020 г., в 13:18, ткаленко кирилл <[hidden email]>
> написал(а):
> >>
> >>  +1
> >>
> >>  08.12.2020, 12:48, "Philipp Masharov" <[hidden email]>:
> >>>  Hello!
> >>>
> >>>  Andrey's arguments are solid.
> >>>
> >>>  On Tue, Dec 8, 2020 at 12:23 PM Pavel Tupitsyn <[hidden email]>
> wrote:
> >>>
> >>>>   +1, Java 11 seems to be the only right choice at the moment.
> >>>>
> >>>>   On Tue, Dec 8, 2020 at 12:08 PM Alexey Zinoviev <
> [hidden email]>
> >>>>   wrote:
> >>>>
> >>>>   > I totally support Java 11 for development. It's time to go forward
> >>>>   >
> >>>>   > вт, 8 дек. 2020 г. в 11:40, Andrey Gura <[hidden email]>:
> >>>>   >
> >>>>   > > Igniters,
> >>>>   > >
> >>>>   > > We already had some discussion about using modern Java versions
> for
> >>>>   > > Ignite 3.0 development [1] but we still don't have consensus.
> >>>>   > > As I see from this discussion the strongest argument for Java
> 11 is
> >>>>   > > the fact that Java 11 is the latest LTS release which will have
> >>>>   > > premier support until September 2023. So I don't see any reason
> for
> >>>>   > > preferring any other version of Java at this moment.
> >>>>   > >
> >>>>   > > The purpose of this thread is to gather opinions about using
> Java 11
> >>>>   > > in the Ignite 3.0 project and, eventually, reach a consensus on
> this.
> >>>>   > >
> >>>>   > > I want to share my several arguments in favor of abandoning
> Java 8 and
> >>>>   > > preferring Java 11:
> >>>>   > >
> >>>>   > > * Java 8 has gone through the End of Public Updates process for
> legacy
> >>>>   > > releases. So it doesn't make sense to start new development on
> Java 8.
> >>>>   > >
> >>>>   > > * Java 9+ brings Jigsaw modularization which allows us to have
> more
> >>>>   > > fine-grained structure of Ignite modules and APIs in the future.
> >>>>   > >
> >>>>   > > * Ignite actively uses Unsafe functionality which, firstly,
> isn't
> >>>>   > > public, and secondly, leads to problems with running Ignite
> under Java
> >>>>   > > 9+ (modularization which requires dozens of command-line
> options in
> >>>>   > > order to forcibly export corresponding packages) and GraalVM.
> Such a
> >>>>   > > situation could be described as bad user experience and we
> should fix
> >>>>   > > it. Var handles [2] could be used for solving described
> problems.
> >>>>   > >
> >>>>   > > * Java 9+ introduces Flight Recorder API [3] which could be
> used in
> >>>>   > > the Ignite project for lightweight profiling of internal
> processes.
> >>>>   > >
> >>>>   > > Please, share your opinions, objections and ideas about this
> topic. I
> >>>>   > > hope we will not have serious disagreements and the consensus
> will be
> >>>>   > > reached quickly.
> >>>>   > >
> >>>>   > >
> >>>>   > > 1.
> >>>>   > >
> >>>>   >
> >>>>
> http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
> >>>>   > > 2.
> >>>>   > >
> >>>>   >
> >>>>
> https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
> >>>>   > > 3.
> >>>>   > >
> >>>>   >
> >>>>
> https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html
> >>>>   > >
> >>>>   >
>

--
Sincerely yours,
Ivan Bessonov

[Alexei Scherbakov]

I think we should move forward, so java11 seems like a proper choice for 3.

ср, 9 дек. 2020 г. в 10:17, Ivan Bessonov <[hidden email]>:

> This is an awesome idea.
>
> Honestly, I can't come up with strong technical arguments for Java 11 as a
> source level, I had no chance to work with it long enough, but it feels
> like a
> proper time to move to a "modern" technology. Subjectively I can say that
> Java 11 has a lot of good optimization and Ignite should run better on it.
> So
> it makes no sense to compile for 8 but recommend 11, you know.
>
> вт, 8 дек. 2020 г. в 21:16, Данилов Семён <[hidden email]>:
>
> > +1 for sure. AFAIK, the only thing holding us back from using Java 11 is
> > the dominance of Java 8, but I'm sure that by the time Ignite 3 is GA,
> > there will be much fewer Java 8 users if any significant number at all.
> By
> > the by, Ignite's sources need minimal effort to be able to be compiled
> with
> > Java 11 as a target.
> >
> > 08.12.2020, 15:00, "Nikolay Izhikov" <[hidden email]>:
> > > +1 for using java 11.
> > >
> > >>  8 дек. 2020 г., в 13:18, ткаленко кирилл <[hidden email]>
> > написал(а):
> > >>
> > >>  +1
> > >>
> > >>  08.12.2020, 12:48, "Philipp Masharov" <[hidden email]>:
> > >>>  Hello!
> > >>>
> > >>>  Andrey's arguments are solid.
> > >>>
> > >>>  On Tue, Dec 8, 2020 at 12:23 PM Pavel Tupitsyn <
> [hidden email]>
> > wrote:
> > >>>
> > >>>>   +1, Java 11 seems to be the only right choice at the moment.
> > >>>>
> > >>>>   On Tue, Dec 8, 2020 at 12:08 PM Alexey Zinoviev <
> > [hidden email]>
> > >>>>   wrote:
> > >>>>
> > >>>>   > I totally support Java 11 for development. It's time to go
> forward
> > >>>>   >
> > >>>>   > вт, 8 дек. 2020 г. в 11:40, Andrey Gura <[hidden email]>:
> > >>>>   >
> > >>>>   > > Igniters,
> > >>>>   > >
> > >>>>   > > We already had some discussion about using modern Java
> versions
> > for
> > >>>>   > > Ignite 3.0 development [1] but we still don't have consensus.
> > >>>>   > > As I see from this discussion the strongest argument for Java
> > 11 is
> > >>>>   > > the fact that Java 11 is the latest LTS release which will
> have
> > >>>>   > > premier support until September 2023. So I don't see any
> reason
> > for
> > >>>>   > > preferring any other version of Java at this moment.
> > >>>>   > >
> > >>>>   > > The purpose of this thread is to gather opinions about using
> > Java 11
> > >>>>   > > in the Ignite 3.0 project and, eventually, reach a consensus
> on
> > this.
> > >>>>   > >
> > >>>>   > > I want to share my several arguments in favor of abandoning
> > Java 8 and
> > >>>>   > > preferring Java 11:
> > >>>>   > >
> > >>>>   > > * Java 8 has gone through the End of Public Updates process
> for
> > legacy
> > >>>>   > > releases. So it doesn't make sense to start new development on
> > Java 8.
> > >>>>   > >
> > >>>>   > > * Java 9+ brings Jigsaw modularization which allows us to have
> > more
> > >>>>   > > fine-grained structure of Ignite modules and APIs in the
> future.
> > >>>>   > >
> > >>>>   > > * Ignite actively uses Unsafe functionality which, firstly,
> > isn't
> > >>>>   > > public, and secondly, leads to problems with running Ignite
> > under Java
> > >>>>   > > 9+ (modularization which requires dozens of command-line
> > options in
> > >>>>   > > order to forcibly export corresponding packages) and GraalVM.
> > Such a
> > >>>>   > > situation could be described as bad user experience and we
> > should fix
> > >>>>   > > it. Var handles [2] could be used for solving described
> > problems.
> > >>>>   > >
> > >>>>   > > * Java 9+ introduces Flight Recorder API [3] which could be
> > used in
> > >>>>   > > the Ignite project for lightweight profiling of internal
> > processes.
> > >>>>   > >
> > >>>>   > > Please, share your opinions, objections and ideas about this
> > topic. I
> > >>>>   > > hope we will not have serious disagreements and the consensus
> > will be
> > >>>>   > > reached quickly.
> > >>>>   > >
> > >>>>   > >
> > >>>>   > > 1.
> > >>>>   > >
> > >>>>   >
> > >>>>
> >
> http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
> > >>>>   > > 2.
> > >>>>   > >
> > >>>>   >
> > >>>>
> >
> https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
> > >>>>   > > 3.
> > >>>>   > >
> > >>>>   >
> > >>>>
> >
> https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html
> > >>>>   > >
> > >>>>   >
> >
>
>
> --
> Sincerely yours,
> Ivan Bessonov
>

--

Best regards,
Alexei Scherbakov

[Steshin Vladimir]

My + for java 11

On 08.12.2020 15:00, Nikolay Izhikov wrote:

> +1 for using java 11.
>
>> 8 дек. 2020 г., в 13:18, ткаленко кирилл <[hidden email]> написал(а):
>>
>> +1
>>
>> 08.12.2020, 12:48, "Philipp Masharov" <[hidden email]>:
>>> Hello!
>>>
>>> Andrey's arguments are solid.
>>>
>>> On Tue, Dec 8, 2020 at 12:23 PM Pavel Tupitsyn <[hidden email]> wrote:
>>>
>>>>   +1, Java 11 seems to be the only right choice at the moment.
>>>>
>>>>   On Tue, Dec 8, 2020 at 12:08 PM Alexey Zinoviev <[hidden email]>
>>>>   wrote:
>>>>
>>>>   > I totally support Java 11 for development. It's time to go forward
>>>>   >
>>>>   > вт, 8 дек. 2020 г. в 11:40, Andrey Gura <[hidden email]>:
>>>>   >
>>>>   > > Igniters,
>>>>   > >
>>>>   > > We already had some discussion about using modern Java versions for
>>>>   > > Ignite 3.0 development [1] but we still don't have consensus.
>>>>   > > As I see from this discussion the strongest argument for Java 11 is
>>>>   > > the fact that Java 11 is the latest LTS release which will have
>>>>   > > premier support until September 2023. So I don't see any reason for
>>>>   > > preferring any other version of Java at this moment.
>>>>   > >
>>>>   > > The purpose of this thread is to gather opinions about using Java 11
>>>>   > > in the Ignite 3.0 project and, eventually, reach a consensus on this.
>>>>   > >
>>>>   > > I want to share my several arguments in favor of abandoning Java 8 and
>>>>   > > preferring Java 11:
>>>>   > >
>>>>   > > * Java 8 has gone through the End of Public Updates process for legacy
>>>>   > > releases. So it doesn't make sense to start new development on Java 8.
>>>>   > >
>>>>   > > * Java 9+ brings Jigsaw modularization which allows us to have more
>>>>   > > fine-grained structure of Ignite modules and APIs in the future.
>>>>   > >
>>>>   > > * Ignite actively uses Unsafe functionality which, firstly, isn't
>>>>   > > public, and secondly, leads to problems with running Ignite under Java
>>>>   > > 9+ (modularization which requires dozens of command-line options in
>>>>   > > order to forcibly export corresponding packages) and GraalVM. Such a
>>>>   > > situation could be described as bad user experience and we should fix
>>>>   > > it. Var handles [2] could be used for solving described problems.
>>>>   > >
>>>>   > > * Java 9+ introduces Flight Recorder API [3] which could be used in
>>>>   > > the Ignite project for lightweight profiling of internal processes.
>>>>   > >
>>>>   > > Please, share your opinions, objections and ideas about this topic. I
>>>>   > > hope we will not have serious disagreements and the consensus will be
>>>>   > > reached quickly.
>>>>   > >
>>>>   > >
>>>>   > > 1.
>>>>   > >
>>>>   >
>>>>   http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
>>>>   > > 2.
>>>>   > >
>>>>   >
>>>>   https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
>>>>   > > 3.
>>>>   > >
>>>>   >
>>>>   https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html
>>>>   > >
>>>>   >

[Pavel Kovalenko]

Huge +1
I guess jigsaw, "var" and VarHandle features can really improve the
codebase.

чт, 10 дек. 2020 г. в 23:41, Vladimir Steshin <[hidden email]>:

> My + for java 11
>
> On 08.12.2020 15:00, Nikolay Izhikov wrote:
> > +1 for using java 11.
> >
> >> 8 дек. 2020 г., в 13:18, ткаленко кирилл <[hidden email]>
> написал(а):
> >>
> >> +1
> >>
> >> 08.12.2020, 12:48, "Philipp Masharov" <[hidden email]>:
> >>> Hello!
> >>>
> >>> Andrey's arguments are solid.
> >>>
> >>> On Tue, Dec 8, 2020 at 12:23 PM Pavel Tupitsyn <[hidden email]>
> wrote:
> >>>
> >>>>   +1, Java 11 seems to be the only right choice at the moment.
> >>>>
> >>>>   On Tue, Dec 8, 2020 at 12:08 PM Alexey Zinoviev <
> [hidden email]>
> >>>>   wrote:
> >>>>
> >>>>   > I totally support Java 11 for development. It's time to go forward
> >>>>   >
> >>>>   > вт, 8 дек. 2020 г. в 11:40, Andrey Gura <[hidden email]>:
> >>>>   >
> >>>>   > > Igniters,
> >>>>   > >
> >>>>   > > We already had some discussion about using modern Java versions
> for
> >>>>   > > Ignite 3.0 development [1] but we still don't have consensus.
> >>>>   > > As I see from this discussion the strongest argument for Java
> 11 is
> >>>>   > > the fact that Java 11 is the latest LTS release which will have
> >>>>   > > premier support until September 2023. So I don't see any reason
> for
> >>>>   > > preferring any other version of Java at this moment.
> >>>>   > >
> >>>>   > > The purpose of this thread is to gather opinions about using
> Java 11
> >>>>   > > in the Ignite 3.0 project and, eventually, reach a consensus on
> this.
> >>>>   > >
> >>>>   > > I want to share my several arguments in favor of abandoning
> Java 8 and
> >>>>   > > preferring Java 11:
> >>>>   > >
> >>>>   > > * Java 8 has gone through the End of Public Updates process for
> legacy
> >>>>   > > releases. So it doesn't make sense to start new development on
> Java 8.
> >>>>   > >
> >>>>   > > * Java 9+ brings Jigsaw modularization which allows us to have
> more
> >>>>   > > fine-grained structure of Ignite modules and APIs in the future.
> >>>>   > >
> >>>>   > > * Ignite actively uses Unsafe functionality which, firstly,
> isn't
> >>>>   > > public, and secondly, leads to problems with running Ignite
> under Java
> >>>>   > > 9+ (modularization which requires dozens of command-line
> options in
> >>>>   > > order to forcibly export corresponding packages) and GraalVM.
> Such a
> >>>>   > > situation could be described as bad user experience and we
> should fix
> >>>>   > > it. Var handles [2] could be used for solving described
> problems.
> >>>>   > >
> >>>>   > > * Java 9+ introduces Flight Recorder API [3] which could be
> used in
> >>>>   > > the Ignite project for lightweight profiling of internal
> processes.
> >>>>   > >
> >>>>   > > Please, share your opinions, objections and ideas about this
> topic. I
> >>>>   > > hope we will not have serious disagreements and the consensus
> will be
> >>>>   > > reached quickly.
> >>>>   > >
> >>>>   > >
> >>>>   > > 1.
> >>>>   > >
> >>>>   >
> >>>>
> http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-3-0-development-approach-tp49922p50295.html
> >>>>   > > 2.
> >>>>   > >
> >>>>   >
> >>>>
> https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/VarHandle.html
> >>>>   > > 3.
> >>>>   > >
> >>>>   >
> >>>>
> https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jfr/jdk/jfr/FlightRecorder.html
> >>>>   > >
> >>>>   >
>