Sonatype helps open source projects to set up Maven repositories on https://oss.sonatype.org/
'net.sf.javaprinciples.test:test-unit:4.0.0'
<dependency>
<groupId>net.sf.javaprinciples.test</groupId>
<artifactId>test-unit</artifactId>
<version>4.0.0</version>
</dependency>
<dependency org="net.sf.javaprinciples.test" name="test-unit" rev="4.0.0"/>
"net.sf.javaprinciples.test", "test-unit", "4.0.0"