Instead of downloading jdk everytime we run CI, we're using inbuilt temurin jdk distributions 8, 11, 17 by settiing JAVA_HOME variable. This is not working as expected since we were not setting this as global environment variable as a result all CI builds are running on jdk11. This PR fixes the issue.
* merge druid-core, extendedset, and druid-hll into druid-processing to simplify everything
* fix poms and license stuff
* mockito is evil
* allow reset of JvmUtils RuntimeInfo if tests used static injection to override
* rebuild maven project or docker image in case of cache hit miss
* rebuild maven project in case of docker cache hit miss too
* fix docker-restore cache hit fail issue
Tejaswini Bandlamudi
Elliott Freis
Clint Wylie