Hi Freeman,
you are right, sometimes I get this error when trying to access
https://repository.apache.org/content/repositories/snapshotsProxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET
/content/repositories/snapshots.
Reason: Error reading from remote server
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Apache/2.0.63 (Unix) mod_ssl/2.0.63 OpenSSL/0.9.7d DAV/2 Server at
repository.apache.org Port 443