AdoptOpenJDK is at a bit of a disadvantage because it doesn't currently have permission and/or access to the TCK for Java SE so is unable to certify their build

AdoptOpenJDK is at a bit of a disadvantage because it doesn't currently have permission and/or access to the TCK for Java SE so is unable to certify their builds (https://adoptopenjdk.net/support.html#jck https://adoptopenjdk.net/support.html#jck). This won't matter for many people but some enterprises will no doubt require it.