I merged this change to just not keep this stalled anymore. It seems that XML namespaces are somewhat under-explained in the development community overall - implying that the support for them in may places is lackluster. However, I basically think it is the wrong approach -
- XML is a *standard*, and it is important that all JDK versions produce the same (and usable) XML from the same sources. Without tweaking the project itself. On Sun, Mar 24, 2019 at 11:15 PM Andreas Veithen <[email protected]> wrote: > On Mon, Oct 8, 2018 at 5:13 PM Lennart Jörelid > <[email protected]> wrote: > > > > Hello all, > > > > I am pondering the future of the JAXB2 Maven plugin, following three > rather problematic properties: > > > > The JAXB2-Maven-Plugin was implemented to delegate Java compilation and > XML or Schema compilation to the tools within the JDK. > > The JAXB support including tooling is removed from JDK 11 and onwards. > > The tooling contains subtle but rather serious bugs which has created a > decently complex mess of workarounds within the plugin. For example - the > XML schema created from one of the integration tests within the plugin > generates incorrect results in JDK9+, as shown in the snippet below. The > JDK8 schemagen tool generates a schema element [including child elements] > with correct namespace prefix, implying that the schema element correctly > resides within the XMLSchema namespace. The JDK9 and JDK10 schemagen tools > incorrectly generates a schema element without a namespace prefix, implying > that the schema element is placed within the targetNamespace, which is > normally the target of each schemagen compilation for each unique XML > namespace within the compilation unit. > > That issue is in fact caused by MNG-6506 and there is a workaround: > https://github.com/mojohaus/jaxb2-maven-plugin/pull/124. > > > > > Snippets: > > > > JDK 1.8 execution: > > ================== > > <?xml version="1.0" encoding="UTF-8" standalone="yes"?> > > <xs:schema version="1.0" targetNamespace="http://acme.com/customer-api"; > xmlns:tns="http://acme.com/customer-api"; xmlns:xs=" > http://www.w3.org/2001/XMLSchema";> > > > > JDK 9,10 execution: > > ================ > > <?xml version="1.0" encoding="UTF-8" standalone="yes"?> > > <schema version="1.0" targetNamespace="http://acme.com/customer-api"; > xmlns:tns="http://acme.com/customer-api"; xmlns:xs=" > http://www.w3.org/2001/XMLSchema";> > > > > So ... We have at least 3 options here: > > > > File a bug report against the development of JDK 9 and 10 (but if I > understand correctly, there is no development going on within these JDK > releases), and hope that this bug gets fixed. > > Find another tool to generate XML Schema from JAXB annotations. This > seems like a better way than the JDK tooling bug approach above, although > it requires a more-or-less complete rewrite of the plugin's internals. > Question: What polyglot Annotation processors or DSL generators do you > recommend? > > Just freeze development of JMP at JDK 8; simply put the codebase into > sunset. This is doable, but not really desirable. > > > > What do you think? Which way should we take? > > > > -- > > You received this message because you are subscribed to the Google > Groups "mojohaus-dev" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > > To post to this group, send email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/mojohaus-dev/3bd959d7-c9d7-4d9d-ae8a-5034e07c25a6%40googlegroups.com > . > > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to a topic in the > Google Groups "mojohaus-dev" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/mojohaus-dev/4AQa45VHo3c/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/mojohaus-dev/CADx4_uVza9NDZTOg7DV%2BLqF_6pWr3pUAF-ffP5OWhpUd4K08JQ%40mail.gmail.com > . > For more options, visit https://groups.google.com/d/optout. > -- -- +==============================+ | Bästa hälsningar, | [sw. "Best regards"] | | Lennart Jörelid | EAI Architect & Integrator | | jGuru Europe AB | Mölnlycke - Kista | | Email: [email protected] | URL: www.jguru.se | Phone | (skype): jgurueurope | (intl): +46 708 507 603 | (domestic): 0708 - 507 603 +==============================+ -- You received this message because you are subscribed to the Google Groups "mojohaus-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/mojohaus-dev/CAJ1fz80Rpe6_QXuQzZb59r1__rB%2B0OXVrPb4SLZhrR4yDK12qQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
