[cdi-dev] Duplicate javax.annotation packages and Java 9

[Romain Manni-Bucau]

Hi John,

the exact same issue happens with @Nullable which is used by a bunch of
libraries (static code analyzis, @AutoValue of guava etc...)

Best i was able to do was to force all these javax annotation to be load in
a classloader which is not the root JVM one but this is a huge regression
of java 9 which has no solution and oracle claims it is intended since it
is a bad practise to have packages over jars (even if jars are abstracted
into a classloader so this is not something which means anything) :(.

A workaround is to not activate the JVM javax.annotation package and
provide all javax.* in the unamed module but this will not last very long
since all modules will slowly be named with time.

Hope it helps a bit even if it doesn't solve anything.



Romain Manni-Bucau
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2017-10-21 16:22 GMT+02:00 John Ament <john.ament at spartasystems.com>:

> Hey all
>
>
> Not sure where else to turn 😊
>
>
> I'm trying to start testing my apps on Java 9, I believe Java 9 kicks back
> the javax.annotation dependency that CDI declares due to a package
> collision with the built in JDK's javax.annotation package
> <https://docs.oracle.com/javase/9/docs/api/javax/annotation/package-summary.html>.
> The errors I get are due to missing javax/annotation/Priority.  I'm
> wondering if anyone else has tried this, and if there's a clean work around?
>
>
> John
>
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