Glad to find feedback I really need in 
It happends with no matter wich code is in. All begins when I try import next modules:
from elasticsearch import Elasticsearch, RequestsHttpConnection
print('Hello, World!')
Maybe will be helpfull to note next notification I get when I boot PyCharm Community on, but it's pretty common issue most of my projects are not conflict with, so I do believe Elasticsearch don't mess with _JAVA_OPTIONS variable neither: