Examples of different remote Maven repositories: Maven Central, public, and a password protected Sonatype Nexus repository. Make sure to ignore gradle.properties and version control gradle.properties.example.

build.gradle

repositories {
    mavenCentral()
    maven {
        // via https://support.sonatype.com/entries/21596297.html
        url "http://www.sonatypenexus.com/maven/"
        credentials {
            username mavenUser
            password mavenPass
        }
    }
    maven {
        url "http://www.bugsense.com/gradle/"
    }
}

gradle.properties.example

mavenUser=myMavenUser
mavenPass=myMavenPass