[BUG][kotlin-spring] Fix defaultValue for RequestHeader is not generated (OpenAPITools#20504)

Author: cgpoh

modules/openapi-generator/src/main/resources/kotlin-spring/apiDelegate.mustache

@@ -32,7 +32,7 @@ interface {{classname}}Delegate {
     /**
      * @see {{classname}}#{{operationId}}
      */
-    {{#reactive}}{{^isArray}}suspend {{/isArray}}{{#isArray}}{{^useFlowForArrayReturnType}}suspend {{/useFlowForArrayReturnType}}{{/isArray}}{{/reactive}}fun {{operationId}}({{#allParams}}{{{paramName}}}: {{^reactive}}{{>optionalDataType}}{{/reactive}}{{#reactive}}{{^isArray}}{{>optionalDataType}}{{/isArray}}{{#isArray}}{{#isBodyParam}}Flow<{{{baseType}}}>{{/isBodyParam}}{{^isBodyParam}}{{>optionalDataType}}{{/isBodyParam}}{{/isArray}}{{/reactive}}{{^-last}},
+    {{#reactive}}{{^isArray}}suspend {{/isArray}}{{#isArray}}{{^useFlowForArrayReturnType}}suspend {{/useFlowForArrayReturnType}}{{/isArray}}{{/reactive}}fun {{operationId}}({{#allParams}}{{{paramName}}}: {{^reactive}}{{#required}}{{>optionalDataType}}{{/required}}{{^required}}{{>optionalDataType}}?{{/required}}{{/reactive}}{{#reactive}}{{^isArray}}{{#required}}{{>optionalDataType}}{{/required}}{{^required}}{{>optionalDataType}}?{{/required}}{{/isArray}}{{#isArray}}{{#isBodyParam}}Flow<{{{baseType}}}>{{/isBodyParam}}{{^isBodyParam}}{{#required}}{{>optionalDataType}}{{/required}}{{^required}}{{>optionalDataType}}?{{/required}}{{/isBodyParam}}{{/isArray}}{{/reactive}}{{^-last}},
         {{/-last}}{{/allParams}}): {{#responseWrapper}}{{.}}<{{/responseWrapper}}ResponseEntity<{{>returnTypes}}>{{#responseWrapper}}>{{/responseWrapper}}{{^skipDefaultDelegateInterface}} {
         {{>methodBody}}
     }{{/skipDefaultDelegateInterface}}

modules/openapi-generator/src/main/resources/kotlin-spring/headerParams.mustache

@@ -1 +1 @@
-{{#isHeaderParam}}{{#useBeanValidation}}{{>beanValidationCore}}{{/useBeanValidation}}{{#swagger2AnnotationLibrary}}@Parameter(description = "{{{description}}}", `in` = ParameterIn.HEADER{{#required}}, required = true{{/required}}{{#allowableValues}}{{#defaultValue}}, schema = Schema(allowableValues = [{{#values}}"{{{.}}}"{{^-last}}, {{/-last}}{{/values}}]{{^isContainer}}, defaultValue = {{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{{defaultValue}}}{{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{/isContainer}}){{/defaultValue}}{{/allowableValues}}{{#allowableValues}}{{^defaultValue}}, schema = Schema(allowableValues = [{{#values}}"{{{.}}}"{{^-last}}, {{/-last}}{{/values}}]){{/defaultValue}}{{/allowableValues}}{{^allowableValues}}{{#defaultValue}}{{^isContainer}}, schema = Schema(defaultValue = {{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{{defaultValue}}}{{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}){{/isContainer}}{{/defaultValue}}{{/allowableValues}}){{/swagger2AnnotationLibrary}}{{#swagger1AnnotationLibrary}}@ApiParam(value = "{{{description}}}"{{#required}}, required = true{{/required}}{{#allowableValues}}, allowableValues = "{{#values}}{{{.}}}{{^-last}}, {{/-last}}{{/values}}"{{/allowableValues}}{{#defaultValue}}, defaultValue = "{{{.}}}"{{/defaultValue}}){{/swagger1AnnotationLibrary}} @RequestHeader(value = "{{baseName}}", required = {{#required}}true{{/required}}{{^required}}false{{/required}}) {{{paramName}}}: {{>optionalDataType}}{{/isHeaderParam}}
+{{#isHeaderParam}}{{#useBeanValidation}}{{>beanValidationCore}}{{/useBeanValidation}}{{#swagger2AnnotationLibrary}}@Parameter(description = "{{{description}}}", `in` = ParameterIn.HEADER{{#required}}, required = true{{/required}}{{#allowableValues}}{{#defaultValue}}, schema = Schema(allowableValues = [{{#values}}"{{{.}}}"{{^-last}}, {{/-last}}{{/values}}]{{^isContainer}}, defaultValue = {{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{{defaultValue}}}{{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{/isContainer}}){{/defaultValue}}{{/allowableValues}}{{#allowableValues}}{{^defaultValue}}, schema = Schema(allowableValues = [{{#values}}"{{{.}}}"{{^-last}}, {{/-last}}{{/values}}]){{/defaultValue}}{{/allowableValues}}{{^allowableValues}}{{#defaultValue}}{{^isContainer}}, schema = Schema(defaultValue = {{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{{defaultValue}}}{{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}){{/isContainer}}{{/defaultValue}}{{/allowableValues}}){{/swagger2AnnotationLibrary}}{{#swagger1AnnotationLibrary}}@ApiParam(value = "{{{description}}}"{{#required}}, required = true{{/required}}{{#allowableValues}}, allowableValues = "{{#values}}{{{.}}}{{^-last}}, {{/-last}}{{/values}}"{{/allowableValues}}{{#defaultValue}}, defaultValue = "{{{.}}}"{{/defaultValue}}){{/swagger1AnnotationLibrary}} @RequestHeader(value = "{{baseName}}", required = {{#required}}true{{/required}}{{^required}}false{{/required}}{{#defaultValue}}, defaultValue = {{{.}}}{{/defaultValue}}) {{{paramName}}}: {{#required}}{{>optionalDataType}}{{/required}}{{^required}}{{>optionalDataType}}?{{/required}}{{/isHeaderParam}}