Uses of Interface

Packages that use OnMaster
Beef up the plain text console output by adding HTML markup.
Core object model that are bound to URLs via stapler, rooted at Jenkins.
Boolean expression over labels.
Code that monitors the health of agents
Jenkins's interface with source code management systems.
QuickSilver-like search/jump capability for better navigation around Jenkins.
Security-related code.
Code related to agents.
Built-in Builders and Publishers that perform the actual heavy-lifting of a build.
Built-in Triggers that run periodically to kick a new build.