`nexus-staging-maven-plugin` gives `Nexus connection problem to URL {...}: 404 - Not Found`

I’m trying to reproduce the behaviour of nexus-staging-maven-plugin with a local Nexus instance, but I’m getting a weird error I can’t understand when trying a deploy:

[ERROR] Failed to execute goal org.sonatype.plugins:nexus-staging-maven-plugin:1.6.13:deploy (injected-nexus-deploy) on project deploytest: Execution injected-nexus-deploy of goal org.sonatype.plugins:nexus-staging-maven-plugin:1.6.13:deploy failed: Nexus connection problem to URL [http://localhost:8081 ]: 404 - Not Found → [Help 1]

I’ve tried running Nexus both locally and via Docker, and on both Windows and MacOS, and I can access the Nexus instance via a browser.

I’m guessing I’ve got the URL wrong but I don’t see how.

Reproducible example:

  • pom.xml:
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-.0.0.xsd">
  • settings.xml:
  • Nexus run via docker run -d -p 8081:8081 --name nexus sonatype/nexus3
  • Deploy via mvn clean deploy

Are you a Nexus Pro customer using Nexus 2.x?