Fix codacy verificcation issues - naming conventions

[tsvetaevAlex]

naming convention:
lit of issues:
https://app.codacy.com/gh/jdi-testing/jdi-light/issues?bid=25422683&filters=W3siaWQiOiJMYW5ndWFnZSIsInZhbHVlcyI6W119LHsiaWQiOiJDYXRlZ29yeSIsInZhbHVlcyI6W119LHsiaWQiOiJMZXZlbCIsInZhbHVlcyI6W119LHsiaWQiOiJQYXR0ZXJuIiwidmFsdWVzIjpbIjE4NjAiXX0seyJpZCI6IkF1dGhvciIsInZhbHVlcyI6W119XQ==

[tsvetaevAlex]

naming convention issues:
must match pattern '^[a-z][a-zA-Z0-9]*$'.