List of maven repositories currently proxied through Nexus
Maven 2
Maven Central: http://repo1.maven.org/maven2/
Apache Snapshots: http://repository.apache.org/snapshots
Codehaus Snapshots: http://snapshots.repository.codehaus.org/
Java.net: http://download.java.net/maven/2
Maven 1
Java.net.1: https://maven-repository.dev.java.net/repository