users@jaxb.java.net

Re: JAXB backward compatibility

From: Iaroslav Savytskyi <Iaroslav.Savytskyi_at_oracle.com>
Date: Tue, 30 Sep 2014 11:20:33 +0200

Hi Sergei,

Unfortunately this it not much you can do. We don’t support the old behaviour.

You can try to check, may be JAXB 2.1.17 will be more compatible with your expectations.


Best regards,
Iaroslav

On 24 Sep 2014, at 10:00, sergei_at_synopsia.net wrote:

> Hi all,
>
> Years ago I wrote an application that used JAXB to generate Java bindings for an XML schema. The application code and the schema have been updated quite a lot over the years, but the JAXB jars remained the same since 2008, which was when I started using JAXB for this application. I've been using Ant to build the application, including generating and compiling bindings, and everything worked fine on at least two XP Pro development machines. I made some changes to the schema and never had to think about JAXB.
>
> Recently I tried to rebuild the application from scratch on a new laptop, and the build keeps failing. The new 64-bit laptop is running windows 7 Pro, it had a newer JDK (1.7.0_45) and a new version of Ant (1.9.3). I was able to get around some weird problems by switching to a yet newer version of ant (1.9.4) and switching to latest JAXB jars. At this point, I don't even remember what those issues were (but I can recreate them by reverting to older JAXB jars in SVN).
>
> After upgrading JAXB, I ran into new problems. First of all, the xjc task in ant seems to be interpreting the `target` attribute differently; it threw some error and apparently the `destdir` has the semantic meaning that `target` used to have.
>
> Second, this task no longer generates the `impl` package with the implementation classes whose names were supposed to end with `Type`, so the rest of my code fails with a bunch of compilation problems.
>
> Is there a way to make the new JAXB version backward-compatible? My other options are try updating the code to work with the new bindings, which seems like a lot of unnecessary work, or reverting to old JDK and Ant.
>
> Thanks in advance for any advice.
>
> Sergei