Maven not using configured repositories to resolve all dependencies - maven

Question

Hello I am trying to build a jar using maven behind a corporate proxy with our own artifactory server.
We are building using docker gitlab runners and I am using the maven:3-jdk-8 image which is running Apache Maven 3.5.4.
The build starts fine by downloading the dependencies from our artifactory but when the maven-assembly-plugin tries to package our output into a jar I get the following error in debug mode:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.2.1:single (package-jar-with-dependencies) on project <my-project>: Failed to create assembly: Unable to resolve dependencies for assembly 'jar-with-dependencies': Failed to resolve dependencies for assembly: Unable to get dependency information for org.hibernate.validator:hibernate-validator:jar:6.0.13.Final: Failed to process POM for org.hibernate.validator:hibernate-validator:jar:6.0.13.Final: Non-resolvable import POM: Could not transfer artifact org.jboss.shrinkwrap:shrinkwrap-bom:pom:1.2.3 from/to central (https://repo.maven.apache.org/maven2): repo.maven.apache.org: Name or service not known
[ERROR] org.hibernate.validator:hibernate-validator:jar:6.0.13.Final
[ERROR]
[ERROR] from the specified remote repositories:
[ERROR] central (https://artifactory.corp.net/, releases=true, snapshots=false)
[ERROR] Path to dependency:
[ERROR] 1) <my-project>
[ERROR] 2) org.springframework.boot:spring-boot-starter-web:jar:2.1.0.RELEASE: Unknown host repo.maven.apache.org: Name or service not known
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.2.1:single (package-jar-with-dependencies) on project <my-project>: Failed to create assembly: Unable to resolve dependencies for assembly 'jar-with-dependencies'
The glaring issue would seem to be that maven is trying to retrieve hibernate-validator from repo.maven.apache.org rather than my local corporate artifactory.
I have verified that the jar in question does indeed exist in my artifactory. I have built the project locally (outside of docker maven version 3.6.1 bundled with Intellij) with identical settings and didn't have any problems.
Any ideas what I'm doing wrong?
Some possibly useful files
The effective settings generated by help:effective-settings
<settings xmlns="http://maven.apache.org/SETTINGS/1.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd">
<localRepository>path-to-my-repo</localRepository>
<servers>
<server>
<username>username</username>
<password>***</password>
<id>central</id>
</server>
<server>
<username>username</username>
<password>***</password>
<id>snapshots</id>
</server>
</servers>
<profiles>
<profile>
<repositories>
<repository>
<snapshots>
<enabled>false</enabled>
</snapshots>
<id>central</id>
<name>Artifactory</name>
<url>https://artifactory.corp.net/</url>
</repository>
<repository>
<snapshots />
<id>snapshots</id>
<name>Artifactory</name>
<url>https://artifactory.corp.net/</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<snapshots>
<enabled>false</enabled>
</snapshots>
<id>central</id>
<name>Artifactory</name>
<url>https://artifactory.corp.net/</url>
</pluginRepository>
<pluginRepository>
<snapshots />
<id>snapshots</id>
<name>Artifactory</name>
<url>https://artifactory.corp.net/</url>
</pluginRepository>
</pluginRepositories>
<id>artifactory</id>
</profile>
</profiles>
<activeProfiles>
<activeProfile>artifactory</activeProfile>
</activeProfiles>
<pluginGroups>
<pluginGroup>org.apache.maven.plugins</pluginGroup>
<pluginGroup>org.codehaus.mojo</pluginGroup>
</pluginGroups>
</settings>
The plugin configuration from the pom file
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.2.1</version>
<executions>
<execution>
<id>package-jar-with-dependencies</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<appendAssemblyId>false</appendAssemblyId>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>the.main.class</mainClass>
</manifest>
</archive>
</configuration>
</execution>
</executions>
</plugin>

Answer 1

It is very likely that this is the result of a missing mirror configuration in the settings.xml.
If you want to send every request to your artifactory, you need to specify it as a mirror. Otherwise, repository definitions from POMs may be used as well.