Just try to run hazelcast 3 (latest of 3.x) on java11. It will log what it
needs to be opened up.

T on phone

On Tue, Jun 15, 2021, 20:19 Benjamin Marwell <bmarw...@apache.org> wrote:

> Tamás,
>
> which module do you open?
>
> In most cases I have encountered, adding jaxb as a dependency to the
> project is sufficient. But to be sure, we would need to see an example.
>
> I think this would have long been noticed if it was a common problem.
>
> Ben
>
>
> On Tue, 15 Jun 2021, 19:18 Tamás Cservenák, <ta...@cservenak.net> wrote:
>
> > Howdy,
> >
> > Robert, I think you are wrong:
> >
> > from Java 11 migration guide
> >
> > --add-opens
> > If you have to allow code on the class path to do deep reflection to
> access
> > nonpublic members, then use the --add-opens runtime option.
> > Some libraries do deep reflection, meaning setAccessible(true), so they
> can
> > access all members, including private ones. You can grant this access
> using
> > the --add-opens option on the java command line. No warning messages are
> > generated as a result of using this option.
> >
> > Hence, it is needed even for CP applications, that do require "deep
> > reflection".
> >
> > HTH
> > Tamas
> >
> > On Tue, Jun 15, 2021 at 7:04 PM Robert Scholte <rfscho...@apache.org>
> > wrote:
> >
> > > AFAIK the --add-opens is only useful when using the module path. Maven
> > > itself and the plugins use the classpath, so I would like to have an
> > > example to better understand your issue.
> > >
> > > thanks,
> > > Robert
> > > On 15-6-2021 18:43:35, Guillaume Nodet <gno...@apache.org> wrote:
> > > Hi everyone !
> > >
> > > There are some small incompatibilities between JDK around the supported
> > > command line versions. Usually, those do not cause any real problems.
> > > However, the "--add-opens" are sometimes necessary and only supported
> on
> > > JDK >= 9, as the JVM exits with an error on JDK 8.
> > > Some plugins may require the use of those options when running on JDK
> >=
> > > 9. What would be the way to solve this ?
> > >
> > > For mvnd, when the client launches the daemon, the JDK_JAVA_OPTIONS
> > > environment property is used. But it works because we have control on
> the
> > > client environment. But when you just clone a git repo, asking the user
> > to
> > > set a specific environment is problematic imho. The .mvn/maven.config
> or
> > > .mvn/jvm.config can't be used to set up environment variables or to
> > > conditionally set up arguments afaik.
> > >
> > > Any idea ?
> > >
> > > --
> > > ------------------------
> > > Guillaume Nodet
> > >
> >
>

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