Fixing squid: S1319 Declarations should use Java collection interfaces such as "List" rather than specific implementation classes such as "LinkedList"

[devFozgul]

This pull request is focused on resolving occurrences of Sonar rule squid:S1319 - “Declarations should use Java collection interfaces such as ""List"" rather than specific implementation classes such as ""LinkedList"" ”. You can find more information about the issue here: https://dev.eclipse.org/sonar/rules/show/squid:S1319 Please let me know if you have any questions. Fevzi Ozgul