Hi there,

When i needed a settings.xml file in the past I would copy the code from
https://maven.apache.org/settings.html
https://maven.apache.org/ref/4.0.0-alpha-5/maven-settings/settings.html

and replace the self-closing tag of whichever section I needed - typically
servers, mirrors and profiles.
The other tags would remain, like "<localRepository/>"

With Maven 3 the empty/self-closing tag was ignored, but in Maven 4 the
value is removed/replaced, resulting in the local repository directory set
to ${pwd}.
This is the case for settings.xml (what about toolchains.xml?) but not
pom.xml

With Maven 4.0.0-alpha-5, and I guess
https://issues.apache.org/jira/browse/MNG-7678
the behaviour has changed back to that of Maven 3 - an empty tag is simply
ignored, it doesn't override.
But while the build is successful, mvn help:effective-settings now fails
with

Execution default-cli of goal
org.apache.maven.plugins:maven-help-plugin:3.4.0:effective-settings failed:
Cannot invoke "org.codehaus.plexus.util.xml.Xpp3Dom.getDom()" because
"configuration" is null

Is this now a bug in the help plugin?

Regards,
Delany

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