Delany created MPH-205:
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Summary: Handling empty elements
Key: MPH-205
URL: https://issues.apache.org/jira/browse/MPH-205
Project: Maven Help Plugin
Issue Type: Bug
Components: effective-settings
Affects Versions: 3.4.0
Reporter: Delany
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 3.9.0 the empty/self-closing tag was ignored.
In Maven 4.0.0-alpha-1 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
{noformat}
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{noformat}
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