Problem Statement:
(1) I am behind a firewall, therefore Maven is unable to connect to repositories to download jars etc.
Solution:
In MAVEN_HOME\apache-maven-3.0.3\conf dir you have settings.xml. Open it and update the following:
<proxies>
<!-- proxy
| Specification for one proxy, to be used in connecting to the network. -->
<proxy>
<id>optional</id>
<active>true</active>
<protocol>http</protocol>
<host></host>
<port></port>
<username></username>
<password></password>
<nonProxyHosts></nonProxyHosts>
</proxy>
</proxies>
Also check the following dir on windows:
C:\Documents and Settings\useName\.m2
If this has settings.xml – update that too.
Remember that username may require to be prefixed with domain name eg: mycorp/myuser
Problem Statement:
(2) I am behind a firewall, using Eclipse IDE and have a Maven Plugin. But it is unable to connect to repositories.
Solution:
Menu> Windows > Preferences > General > Network Connections.
Update the Proxy entries there.
In case this does not work, try doing the Step 1 solution as well.
NOTE:
1. Many Corporate Proxies will block you (temporarily?) on repeated authentication failures. Therefore be aware of this possibility.
2. Try to authenticate yourself against your network say by logging off and logging into your system to ensure that your login credentials are still valid.
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