Ant runs builds from `build.xml` files — compile JavaA portable language running on the JVM — dominant in enterprise servers, Android, and big data., jar artifacts, run tests, copy resources — without Make's platform quirks. It powered Tomcat, early enterprise JavaA portable language running on the JVM — dominant in enterprise servers, Android, and big data., and later MavenA Java build and dependency tool — standardized project structure and artifact repositories.'s ecosystem. Example: `<target name="compile"><javac srcdir="src"/></target>` runs the same on Windows, macOSApple's desktop operating system — runs on Mac hardware with Unix foundations and the Cocoa UI framework., and Linux.

Ant made cross-platform JavaA portable language running on the JVM — dominant in enterprise servers, Android, and big data. builds practical before IDEs owned the workflow.

XMLExtensible Markup Language — a markup format for structured documents and data exchange.-defined builds became the template MavenA Java build and dependency tool — standardized project structure and artifact repositories. and GradleA build automation tool for Java, Kotlin, and Android projects using a flexible task model. later improved upon.