MiniMaven is a minimal build system interpreting Maven-style pom.xml files. Its primary purpose is to support the SciJava scripting framework ("Java as a scripting language").
Its initial purpose was to serve as a drop-in replacement for Maven to build Fiji, ImageJ2 and other very simple Java projects. MiniMaven was originally maintained as part of Fiji as a successor to the Fiji Build System, it migrated to ImageJ2 and subsequently to the SciJava family of projects.