THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
Login into https://repository.apache.org/ , then click Release. It should then propagate to Apache release maven repository and eventually mirrored to maven central.
Download links should be using the mirror pages under https://www.apache.org/dyn/closer.cgi/incubator/griffin
Wait and check http://repo2.maven.org/maven2/org/apache/griffin
...