maven-settings.xml

<?xml version="1.0" encoding="UTF-8"?>
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<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
    <servers>
        <server>
            <id>apache.snapshots.https</id>
            <username>${env.NEXUS_USERNAME}</username>
            <password>${env.NEXUS_PASSWORD}</password>
        </server>
    </servers>
</settings>