Hi!
I'm not sure that @Nullable can really fix the NPE problem.
Currently, we have @Nullable annotation and NPE simultaneously.
The best way to avoid NPE is by using a null object pattern.
I agree we shouldn't rely on @Nullable.


пт, 27 мар. 2020 г. в 12:58, Sergey Antonov <antonovserge...@gmail.com>:

> I disagree.
>
> Intellij idea IDE has a static code analysis, which uses that
> annotation too. IDE highlights possible problems. It helps to make our code
> more stable and bugless.
>
> пт, 27 мар. 2020 г. в 12:06, Pavel Tupitsyn <ptupit...@apache.org>:
>
> > I disagree, it would be a step back.
> >
> > > What's the reason for using it?
> > Null was a billion dollar mistake [1].
> > NullPointerExceptions happen quite a lot in Ignite, and annotations
> provide
> > some clues to avoid those.
> >
> > [1] https://en.wikipedia.org/wiki/Tony_Hoare#Apologies_and_retractions
> >
> > On Fri, Mar 27, 2020 at 10:58 AM Anton Vinogradov <a...@apache.org> wrote:
> >
> > > Folks,
> > >
> > > Found we still use @Nullable annotation.
> > >
> > > What's the reason for using it?
> > > Everything is Object and Nullable :)
> > >
> > > How about get rid of @Nullable usages and restrict its usage by
> > checkstyle
> > > plugin?
> > >
> > > BTW, We already "do not use @NotNull annotation" (с) Coding Guidelines
> > [1]
> > > which may have some cense in contrast to @Nullable.
> > > But I see a lot of usages at code.
> > >
> > > How about to get rid of @NotNull too and to add such check to
> checkstyle
> > > plugin too?
> > >
> > > [1]
> > >
> > >
> >
> https://cwiki.apache.org/confluence/display/IGNITE/Coding+Guidelines#CodingGuidelines-@Annotations
> > >
> >
>
>
> --
> BR, Sergey Antonov
>

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