Description
Here is stack trace
NoMethodError: undefined method `getServerInfo' for #<Java::OrgApacheHadoopHbase::ClusterStatus:0x6175f8cb>
getServers at draining_servers.rb:53
__for__ at draining_servers.rb:71
each at org/jruby/RubyArray.java:1620
getServerNames at draining_servers.rb:64
addServers at draining_servers.rb:86
(root) at draining_servers.rb:152