This list is updated automatically from the repositories specified in your pom files (or inherited from parent project's pom and settings.xml).
If you open a project that has some additional repositories specified, you'll see them in this list and will be able to update the indices.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…