Maven: No plugin found for prefix 'jetty' in the current project...

 If you get something like

[ERROR] No plugin found for prefix 'jetty' in the current project and in the plugin groups [de.hybris.mavenplugins, org.codehaus.cargo, de.hybris.platform, com.sap.research, org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (/Users/alex/.m2/repository), central (http://repo1.maven.org/maven2), hybris-repository (http://repository.hybris.com/hybris-repository)] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/NoPluginFoundForPrefixException
add something like the following to your ~/.m2/settings.xml
<pluginGroups>
    <pluginGroup>org.mortbay.jetty</pluginGroup>
</pluginGroups>
...to resolve this issue.

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