> To build an average Java software, you have to install a specific version of JDK, download a specific build system (Ant, Maven, Gradle, Bazel), hope everything works out on the first try

to build a modern java project with gradle, you need _any_ jvm installed on your pc. you execute a task via the gradle wrapper (which is committed alongside the code) and it will download and invoke the pinned version of gradle, which then downloads the configured java toolchain (version, vendor, etc.) if it can't find it on your machine.

it just works.