This page contains the latest jtreg builds for use with OpenJDK tests. It tracks the upstream source repository. The binaries rebuild on every commit, or at least once a month.
To use it with OpenJDK build, do this:
$ wget https://builds.shipilev.net/jtreg/jtreg.zip $ unzip jtreg.zip # Later, in OpenJDK build: $ sh ./configure --with-jtreg=jtreg/ ...