squid:S1206 - equals(Object obj) and hashCode() should be overridden in pairs

[georgekankava]

This pull request is focused on resolving occurrences of Sonar rule
squid:S1206 - equals(Object obj) and hashCode() should be overridden in pairs.
You can find more information about the issue here:
https://dev.eclipse.org/sonar/coding_rules#q=squid%3AS1206
Please let me know if you have any questions.
George Kankava

[codecov-io]

Current coverage is 57.49%

Merging #515 into master will decrease coverage by -0.02% as of ece4735

@@            master    #515   diff @@
======================================
  Files          143     143       
  Stmts        15108   15119    +11
  Branches      2961    2961       
  Methods          0       0       
======================================
+ Hit           8690    8692     +2
+ Partial       1170    1169     -1
- Missed        5248    5258    +10

Review entire Coverage Diff as of ece4735

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