vi ~/.m2/settings.xml

<mirror>
    <id>repo2</id>
    <mirrorOf>central</mirrorOf>
    <name>Human Readable Name for this Mirror.</name>
    <url>http://repo2.maven.org/maven2/</url>
</mirror>
<mirror>
    <id>net-cn</id>
    <mirrorOf>central</mirrorOf>
    <name>Human Readable Name for this Mirror.</name>
    <url>http://maven.net.cn/content/groups/public/</url>
</mirror>
<mirror>
    <id>ui</id>
    <mirrorOf>central</mirrorOf>
    <name>Human Readable Name for this Mirror.</name>
    <url>http://uk.maven.org/maven2/</url>
</mirror>
<mirror>
    <id>ibiblio</id>
    <mirrorOf>central</mirrorOf>
    <name>Human Readable Name for this Mirror.</name>
    <url>http://mirrors.ibiblio.org/pub/mirrors/maven2/</url>
</mirror>
<mirror>
    <id>jboss-public-repository-group</id>
    <mirrorOf>central</mirrorOf>
    <name>JBoss Public Repository Group</name>
    <url>http://repository.jboss.org/nexus/content/groups/public</url>
</mirror>
<mirror>
    <id>JBossJBPM</id>
    <mirrorOf>central</mirrorOf>
    <name>JBossJBPM Repository</name>
    <url>https://repository.jboss.org/nexus/content/repositories/releases/</url>
</mirror>