CAN'T DOWNLOAD
DEPENDENCIES
'MVN CLEAN INSTALL'

Case when 'mvn clean install' on your server got stuct because maven can't download dependencies. It failed bacause server not connected to internet.

How to solve?

Check your connection and config your proxy internet.

telnet ip_proxy proxy_port

if already connected but still refuse download dependencies, check your proxy config in setting xml, /.m2/settings.xml

add proxy config in your /.m2/settings.xml

<proxies>
  <proxy>
    <id>example-proxy2</id>
    <active>true</active>
    <protocol>https</protocol>
    <host>your_ip_proxy</host>
    <port>port_proxy</port>
    <username></username>
    <password></password>
  </proxy>
</proxies>

Note this: Proxy enabled (in settings.xml) so dependencies can be downloaded, but it prevents connecting to Sonar.

When this happen, add nonProxy flag to your sonar command

mvn sonar:sonar -Dsonar.projectKey=${SERVICE_GROUP}:${SERVICE_NAME}-${BRANCH} -Dsonar.projectName=${SERVICE_NAME}-${BRANCH} -Dsonar.host.url=${SONAR_URL} -Dsonar.token=${SONAR_TOKEN} -Dhttp.nonProxyHosts=${IP_SONAR}

or in your /.m2/settings.xml

<proxies>
  <proxy>
    <id>example-proxy2</id>
    <active>true</active>
    <protocol>https<protocol>
    <host>your_ip_proxy</host>
    <port>port_proxy</port>
    <username></username>
    <password></password>
    <nonProxyHosts>ip_sonar</nonProxyHosts>
  </proxy>
</proxies>