title: Does maven need Internet connection?
body: <p>I try to build a project by maven.I tried </p>
  
  <pre><code>$ mvn archetype:generate -DgroupId=org.thoughtworks.app -DartifactId=mvntest -DarchetypeArtifactId=maven-archetype-quickstart
  </code></pre>
  
  <p>It worked.And then I tried </p>
  
  <pre><code>$ mvn archetype:generate -DgroupId=org.thoughtworks.app -DartifactId=mvntest 
  </code></pre>
  
  <p>I mean,I delete archetypeArtifactId parameter.It fail,I didn't supply it with Internet.the error message is here.Is this parameter made it need Internet?Forget about other depedency.</p>
  
  <pre><code>    [INFO] artifact org.apache.maven.archetypes:maven-archetype-quickstart: checking for updates from central    
      [WARNING] repository metadata for: 'artifact org.apache.maven.archetypes:maven-archetype-quickstart' could not be retrieved from repository: central due to an error: Error transferring file: repo1.maven.org   
      [INFO] Repository 'central' will be blacklisted   
      [INFO] ------------------------------------------------------------------------  
      [ERROR] BUILD FAILURE  
      [INFO] ------------------------------------------------------------------------  
      [INFO] The desired archetype does not exist (org.apache.maven.archetypes:maven-archetype-quickstart:RELEASE)
  </code></pre>