.maven-settings.xml

<?xml version="1.0" encoding="UTF-8"?>
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  %%
  Copyright (C) 2014 wcm.io
  %%
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
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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">

  <profiles>
    <profile>
      <id>default</id>

      <repositories>

        <repository>
          <id>central</id>
          <url>https://repo1.maven.org/maven2/</url>
          <layout>default</layout>
          <releases>
            <enabled>true</enabled>
            <updatePolicy>never</updatePolicy>
          </releases>
          <!-- workaround for https://github.com/mojohaus/build-helper-maven-plugin/issues/108
          <snapshots>
            <enabled>false</enabled>
          </snapshots>
          -->
        </repository>

        <repository>
          <id>oss-snapshots</id>
          <url>https://oss.sonatype.org/content/repositories/snapshots</url>
          <layout>default</layout>
          <releases>
            <enabled>false</enabled>
          </releases>
          <snapshots>
            <enabled>true</enabled>
            <updatePolicy>always</updatePolicy>
          </snapshots>
        </repository>

        <repository>
          <id>apache-snapshots</id>
          <url>https://repository.apache.org/snapshots</url>
          <layout>default</layout>
          <releases>
            <enabled>false</enabled>
          </releases>
          <snapshots>
            <enabled>true</enabled>
            <updatePolicy>always</updatePolicy>
          </snapshots>
        </repository>

      </repositories>

      <pluginRepositories>

        <pluginRepository>
          <id>central</id>
          <url>https://repo1.maven.org/maven2/</url>
          <layout>default</layout>
          <releases>
            <enabled>true</enabled>
            <updatePolicy>never</updatePolicy>
          </releases>
          <snapshots>
            <enabled>false</enabled>
          </snapshots>
        </pluginRepository>

        <pluginRepository>
          <id>oss-snapshots</id>
          <url>https://oss.sonatype.org/content/repositories/snapshots</url>
          <layout>default</layout>
          <releases>
            <enabled>false</enabled>
          </releases>
          <snapshots>
            <enabled>true</enabled>
            <updatePolicy>always</updatePolicy>
          </snapshots>
        </pluginRepository>

        <pluginRepository>
          <id>apache-snapshots</id>
          <url>https://repository.apache.org/snapshots</url>
          <layout>default</layout>
          <releases>
            <enabled>false</enabled>
          </releases>
          <snapshots>
            <enabled>true</enabled>
            <updatePolicy>always</updatePolicy>
          </snapshots>
        </pluginRepository>

      </pluginRepositories>

    </profile>

  </profiles>

  <activeProfiles>
    <activeProfile>default</activeProfile>
  </activeProfiles>

  <servers>
    <server>
      <id>ossrh</id>
      <username>${env.SONATYPE_USERNAME}</username>
      <password>${env.SONATYPE_PASSWORD}</password>
    </server>
  </servers>

</settings>