Fix codacy issues - FOR DECOMPOSITION

[ElenaPoduzova]

For decomposition:

Link to all issues https://app.codacy.com/manual/jdi-testing/jdi-dark/issues
Total count = 71

task: 192:
#192
Fix Codacy Issue: Use explicit scoping instead of the default package private level:
as

Task:#21
Fix Codacy Issue:: Avoid unused imports such as ''{0}''

Task:#193
Avoid unused imports such as ''{0}''

Task:#197
Fix Codacy Issue: Avoid throwing raw exception types.

[ElenaPoduzova]

List of files with issues: https://app.codacy.com/manual/jdi-testing/jdi-dark/files?bid=10286449