Re: [jakartaee-platform-dev] What does it mean for Jakarta EE 9 Full Pla

[Andy McCright <j.andrew.mccright@xxxxxxxxx>]

Hi All,

The dependency has been there since JAX-RS 2.0.  When we had discussed this previously we decided that we could not remove the dependency as that would be a breaking change.  Instead we decided that user applications that use this API are responsible for providing the Jakarta XML Binding APIs and implementation 

(either through their own app or through the vendor app server).  Back in March, I added these lines to the Javadocs:

      * Note that usage of this class requires the Jakarta XML Binding API and an implementation. The Jakarta RESTful Web

      * Services implementation is not required to provide these dependencies.

So, what this means is that RESTful WS depends on XML Binding API at build time.  The Link class is rarely used in user applications, but when it is, users must ensure that their runtime environment includes XML Binding APIs and an implementation.  For most users, they will not need a runtime dependency on XML Binding.

At the time we discussed this, it was approved by the RESTful WS project and at least consensus reached by the platform committee, but if we don't like that answer now, I'm open to considering other options.

Hope this helps,

Andy

On Thu, Sep 17, 2020 at 2:20 PM Scott Marlow <smarlow@xxxxxxxxxx> wrote:

On 9/17/20 2:41 PM, Kevin Sutter wrote:
> According to the early discussions on this topic, the JAX-RS team had
> indicated they would be changing their spec, api, javadoc (whatever) to
> allow for jaxb to be optional.  It looks like the javadoc (at least)
> still indicates that jaxb is required. That has to change (at a
> minimum).  Once this is properly delineated as optional, then any
> corresponding TCKs will need to be marked optional as well.  Which would
> then flow into the Platform TCK...

https://github.com/eclipse-ee4j/jaxrs-api/issues/906 is for updating
jakarta.ws.rs.core.Link to not depend on optional (for Jakarta EE 9)
jakarta.xml.bind (JAXB).  The issue includes a link to this mailing list
conversation.

Scott

>
> ---------------------------------------------------
> Kevin Sutter
> STSM, MicroProfile and Jakarta EE architect @ IBM
> e-mail:  sutter@xxxxxxxxxx     Twitter:  @kwsutter
> phone: tl-553-3620 (office), 507-253-3620 (office)
> LinkedIn: https://www.linkedin.com/in/kevinwsutter
>
>
>
> From: Scott Marlow <smarlow@xxxxxxxxxx>
> To: jakartaee-platform developer discussions
> <jakartaee-platform-dev@xxxxxxxxxxx>
> Date: 09/17/2020 13:26
> Subject: [EXTERNAL] [jakartaee-platform-dev] What does it mean for
> Jakarta EE 9 Full Platform that Jakarta RESTful Web Services are
> depending on (optional) Jakarta XML Binding in Jakarta EE 9?
> Sent by: jakartaee-platform-dev-bounces@xxxxxxxxxxx
> ------------------------------------------------------------------------
>
>
>
> Hi,
>
> It looks like Jakarta RESTful Web Services SPEC API depends on
> (optional) Jakarta XML Binding.  See line 28 in jaxrs-api [1] (line 551
> is also interesting).
>
> How can Jakarta XML Binding be optional [2] if Jakarta RESTful Web
> Services depends on them?
>
> Thanks Alwin for mentioning this on jakartaee-tck/issues/491 [3]!
>
> Scott
>
> [1]
> https://github.com/eclipse-ee4j/jaxrs-api/blob/master/jaxrs-api/src/main/java/jakarta/ws/rs/core/Link.java#L28
>
> [2]
> https://jakarta.ee/specifications/platform/9/platform-spec-9-SNAPSHOT.html#xml-binding-3-0-requirements-optional
>
> [3]
> https://github.com/eclipse-ee4j/jakartaee-tck/issues/491#issuecomment-694324790
>
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