* #2449 bump maven-checkstyle-plugin from 3.1.0 to 3.2.0 + resolve checkstyle issues
* remove FileSelectorJFrame.java to resolve checkstyle issue
* remove FileSelectorJFrame.java to resolve checkstyle issue
* remove FileSelectorJFrame.java to resolve checkstyle issue
* add refactored file with correct filename to resolve checkstyle issue
* add the test data
* change filenames from JFrame to Jframe for checkstyle
* fix code smell from sonar report
* add new testcases to improve the test coverage
* remove code smell
* refactor: move tests of leader-followers into correct package
* dep: remove version constraint for Mockito in acyclic-visitor
* dep: remove version constraint for Mockito in caching
* chore: cleanup mockito-core import on some POMs
* dep: upgrade core.mocktio 3.5.6 to 4.5.1
"- org.mockito.Mockito#verifyZeroInteractions an alias of verifyNoMoreInteractions"
https://github.com/mockito/mockito/commit/caf35b24e2764df0498469526ecb3e7ec68a0430
* Changed database implementation. Removed static objects.
* Fix Logs
* Fix 40 errors from checkstyle plugin run. 139 left))
* Fix CacheStore errors from checkstyle plugin 107 left
* Fix last errors in checkstyle.
* Fix sonar issues
* Fix issues in VALIDATE phase
* Fix Bug with mongo connection. Used "Try with resources"
* Add test
* Added docker-compose for mongo db. MongoDb db work fixed.
* Provided missing tests
* Comments to start Application with mongo.
* Fix some broken links
* Remove extra space
* Update filename
* Fix some links in localization folders
* Fix link
* Update frontmatters
* Work on patterns index page
* Work on index page
* Fixes according PR comments. Mainly Readme edits.
* fix frontmatter
* add missing png
* Update pattern index.md
* Add index.md for Chinese translation
* update image paths
* update circuit breaker image paths
* Update image paths for localizations
* add generated puml
* Add missing image
* Update img file extensions
* Update the rest of the EN and ZH patterns to conform with the new website
Co-authored-by: Victor Zalevskii <zvictormail@gmail.com>