I'm the head Cat Herder (so to speak) for the AdoptOpenJDK OpenJDK binary build farm. The OpenJDK builds we are producing pass the regular OpenJDK tests, a series of system tests and the official TCK/JCK. The quality bar is high and once we've stabilised this process for Java 8,9,10, 11+ and all of the platforms (AIX, ARM 32/64, Windows, Mac, Linux, z390, zOS etc) then we'll be broadly advertising its service. Whether or not we earn the trust of enterprise, we'll have to see :-).