* #18058 Fix AbstractJavaCodegen.getAccepts() so it returns a String array instead of a comma-separated string, and fixed api.mustache so the @RequestMapping annotation generated produces for x-accepts as a parameter list instead of a (single) string.
* #18058 Updated test case to accept a string array instead of a comma-separated list.
* #18058 Reverted changes on imported compared to the main branch.
* #18058 getAccepts() is now hybrid, and can return both a single String or a String[].
* #18058 Rolled back the hybrid getAccepts(), so it only returns a String array.
* #18058 Updated mustache files to cope with vendorExtensions.x-accepts being a string array instead of a comma-separated string.
* #18058 Generated new sample files with by running `./bin/generate-samples.sh ./bin/configs/*.yaml`
* #18058 Optimization of getAccepts()
* #18058 Regenerated scripts that got broken after resolving conflicts on GitHub
* #18058 Fixed introduced issue with api.mustache causing a redundant accept with @HttpExchange with the PetApi.java, StoreApi.java, and UserApi.java.
* [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>
