* [REQ][JAVA]: Add option to generate arrays with "uniqueItems" true as Sets rather than Lists
- Update Java code generation to use sets instead of lists when uniqueItems is set to true
- Add import resolution for sets
- Add tests and fix broke tests
resolve#5254
* Update Javascript, Perl, Python and Ruby to preserve current functionality.
* Switch set implementation to LinkedHashSet
* Fix missing import for uniqueItems used on param.
* Fix missing import and return type for responses with uniqueItems
* Fix default values for array of enum
* Update generated samples
* fix merge issue
* Update generated samples
Co-authored-by: William Cheng <wing328hk@gmail.com>
* WIP: CodegenProperty with XML
* WIP: CodegenModel XML bits
* WIP: Jackson XML
* WIP: Java templating
* WIP: Java client withXml flag
* WIP: resttemplate work
* WIP: withXml only when Jackson is used
* WIP: Tabs to spaces
* WIP: java-petstore-resttemplate-withxml sample
* WIP: language: spring
* WIP: language "spring" using library "spring-boot" should include apiPackage in @ComponentScan to detect the API
* WIP: javax.xml for non-Jackson Java and enabled payload logging for jersey2
* WIP: updated java petstore samples
* WIP: JavaSpring with non-jackson XML
* WIP: bin/spring-all-pestore.sh