[jira] [Comment Edited] (MNG-6036) Allow proper namespace usage for pom.xml

["Elliotte Rusty Harold (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MNG-6036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16996732#comment-16996732 ] 

Elliotte Rusty Harold edited comment on MNG-6036 at 12/24/19 12:48 PM:
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This is  a BFD. Not doing this right is a huge pain point for using the massive XML toolchain for processing Maven documents. I've seen it many times myself. It's not just XSD but XSLT, XQuery, JDOM, XOM and every other XML tool for the last 20+ years.

I'm totally on board for fixing this even if it causes massive breakage for existing poms that all have to fix their malformed XML.



was (Author: elharo):
This is  a BFD. Not doing this right is a huge pain point for using the massive XML toolchain for processing Maven documents. I've seen it many times myself. It's just XSD but XSLT, XQuery, JDOM, XOM and every other XML tool for the last 20+ years.

I'm totally on board for fixing this even if it causes massive breakage for existing poms that all have to fix their malformed XML.


> Allow proper namespace usage for pom.xml
> ----------------------------------------
>
>                 Key: MNG-6036
>                 URL: https://issues.apache.org/jira/browse/MNG-6036
>             Project: Maven
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.3.9
>         Environment: Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T17:41:47+01:00)
> Maven home: /usr/local/Cellar/maven/3.3.9/libexec
> Java version: 1.8.0_40, vendor: Oracle Corporation
> Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home/jre
> Default locale: en_US, platform encoding: UTF-8
> OS name: "mac os x", version: "10.11.4", arch: "x86_64", family: "mac"
>            Reporter: Roland Huss
>            Priority: Major
>
> When I use the following pom.xml in order to allow an XSD for my custom plugin configuration:
> {code:xml}
> <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>          xmlns="http://maven.apache.org/POM/4.0.0"
>          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/POM/4.0.0">
> ....
>     <plugin>
>          ....
>          <m:configuration xmlns:m="http://maven.apache.org/POM/4.0.0" xmlns="http://fabric8.io/fabric8-maven-plugin">
>              <myConfig>.....</myConfig>
>          </m:configuration>
>     </plugin>
>     ....
> </project>
> {code}
> I get this error:
> {code}
> [INFO] Scanning for projects...
> [ERROR] [ERROR] Some problems were encountered while processing the POMs:
> [ERROR] Malformed POM /Users/roland/Development/docker/docker-maven-plugin/samples/data-jolokia-demo/pom.xml: Unrecognised tag: 'm:configuration' (position: START_TAG seen ...che.org/POM/4.0.0" xmlns="http://fabric8.io/fabric8-maven-plugin">... @91:117)  @ /Users/roland/Development/docker/docker-maven-plugin/samples/data-jolokia-demo/pom.xml, line 91, column 117
>  @
> [ERROR] The build could not read 1 project -> [Help 1]
> [ERROR]
> [ERROR]   The project io.fabric8:docker-jolokia-demo:0.15-SNAPSHOT (/Users/roland/Development/docker/docker-maven-plugin/samples/data-jolokia-demo/pom.xml) has 1 error
> [ERROR]     Malformed POM /Users/roland/Development/docker/docker-maven-plugin/samples/data-jolokia-demo/pom.xml: Unrecognised tag: 'm:configuration' (position: START_TAG seen ...che.org/POM/4.0.0" xmlns="http://fabric8.io/fabric8-maven-plugin">... @91:117)  @ /Users/roland/Development/docker/docker-maven-plugin/samples/data-jolokia-demo/pom.xml, line 91, column 117 -> [Help 2]
> {code}
> It would be awesome if the XML parser would resolve namespaces properly. Its not about adding namespace features, only for plain XML resolving (each decent XML these days should be able to do this transparently).
> Except for https://cwiki.apache.org/confluence/display/MAVEN/Moving+forward+with+the+POM+data+model I couldn't find any statement when namespaces are supported or tolerated. Are there any plans for this (and maybe also to relax the schema constraints on the {{<configuration>}} tag)  ?
> See also https://github.com/rhuss/poblano/issues/19 for a use case.



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