Apache Ant

Apache Ant™ is a Java library and command-line tool whose mission is
to drive processes described in build files as targets and extension
points dependent upon each other. The main known usage of Ant is the
build of Java applications. Ant supplies a number of built-in tasks
allowing to compile, assemble, test and run Java applications. Ant
can also be used effectively to build non Java applications, for
instance C or C++ applications. More generally, Ant can be used to
pilot any type of process which can be described in terms of targets
and tasks.

Ant is written in Java and thus requires Java 8 or a later runtime
environment to be installed. If you want to build a Java project you
will need a Java Development Kit rather than just a Java Runtime
Environment.