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John Casey commented on MNG-4228: --------------------------------- maybe you could describe the type of proxy you're trying to use? testing on proxied networks is famously difficult, and many people don't have access to test on certain configurations. It's possible an actual problem slipped through, but I'd expect this isn't beyond our reach to correct using settings.xml configuration. Since Maven 2.2.0 has switched to using a HttpClient-driven http wagon, you might take a look at these pages as starting points, and see how your particular type of proxy is configured: http://maven.apache.org/guides/mini/guide-http-settings.html http://hc.apache.org/httpclient-3.x/ > Authorization failed: Not authorized by proxy. > ---------------------------------------------- > > Key: MNG-4228 > URL: http://jira.codehaus.org/browse/MNG-4228 > Project: Maven 2 > Issue Type: Bug > Components: Artifacts and Repositories, Settings > Affects Versions: 2.2.0 > Environment: Windows XP, java version "1.6.0_04" > Reporter: Marco Noto > > I can not access any external repository using the version 2.2.0. If I go > back to 2.1.0 everything works properly. > For example: > mvn -U eclipse:eclipse > [INFO] Scanning for projects... > [INFO] Searching repository for plugin with prefix: 'eclipse'. > [INFO] org.apache.maven.plugins: checking for updates from central > [WARNING] repository metadata for: 'org.apache.maven.plugins' could not be > retrieved from repository: central due > to an error: Authorization failed: Not authorized by proxy. > [INFO] Repository 'central' will be blacklisted -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.codehaus.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira