diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/apiDelegate.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/apiDelegate.mustache
index 3b2955ac168..b1203ff381b 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-spring/apiDelegate.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-spring/apiDelegate.mustache
@@ -30,7 +30,7 @@ interface {{classname}}Delegate {
     /**
      * @see {{classname}}#{{operationId}}
      */
-    {{#reactive}}{{^isArray}}suspend {{/isArray}}{{/reactive}}fun {{operationId}}({{#allParams}}{{paramName}}: {{^isFile}}{{^reactive}}{{>optionalDataType}}{{/reactive}}{{#reactive}}{{^isArray}}{{>optionalDataType}}{{/isArray}}{{#isArray}}{{#isBodyParam}}Flow<{{{baseType}}}>{{/isBodyParam}}{{^isBodyParam}}{{>optionalDataType}}{{/isBodyParam}}{{/isArray}}{{/reactive}}{{/isFile}}{{#isFile}}Resource?{{/isFile}}{{^-last}},
+    {{#reactive}}{{^isArray}}suspend {{/isArray}}{{/reactive}}fun {{operationId}}({{#allParams}}{{{paramName}}}: {{^isFile}}{{^reactive}}{{>optionalDataType}}{{/reactive}}{{#reactive}}{{^isArray}}{{>optionalDataType}}{{/isArray}}{{#isArray}}{{#isBodyParam}}Flow<{{{baseType}}}>{{/isBodyParam}}{{^isBodyParam}}{{>optionalDataType}}{{/isBodyParam}}{{/isArray}}{{/reactive}}{{/isFile}}{{#isFile}}Resource?{{/isFile}}{{^-last}},
         {{/-last}}{{/allParams}}): {{#responseWrapper}}{{.}}<{{/responseWrapper}}ResponseEntity<{{>returnTypes}}>{{#responseWrapper}}>{{/responseWrapper}} {
         {{>methodBody}}
     }
diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/apiInterface.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/apiInterface.mustache
index 39434479d1b..ce47ed8fdbe 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-spring/apiInterface.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-spring/apiInterface.mustache
@@ -107,7 +107,7 @@ interface {{classname}} {
         return {{>returnValue}}
         {{/isDelegate}}
         {{#isDelegate}}
-        return getDelegate().{{operationId}}({{#allParams}}{{paramName}}{{^-last}}, {{/-last}}{{/allParams}})
+        return getDelegate().{{operationId}}({{#allParams}}{{{paramName}}}{{^-last}}, {{/-last}}{{/allParams}})
         {{/isDelegate}}
     }{{/skipDefaultInterface}}
 {{/operation}}
diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/cookieParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/cookieParams.mustache
index deff1572afe..028264a18bc 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-spring/cookieParams.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-spring/cookieParams.mustache
@@ -1 +1 @@
-{{#isCookieParam}}{{#useBeanValidation}}{{>beanValidationQueryParams}}{{/useBeanValidation}}@CookieValue(name = "{{baseName}}"{{^required}}, required = false{{/required}}{{#defaultValue}}, defaultValue = "{{{.}}}"{{/defaultValue}}) {{paramName}}: {{>optionalDataType}}{{/isCookieParam}}
\ No newline at end of file
+{{#isCookieParam}}{{#useBeanValidation}}{{>beanValidationQueryParams}}{{/useBeanValidation}}@CookieValue(name = "{{baseName}}"{{^required}}, required = false{{/required}}{{#defaultValue}}, defaultValue = "{{{.}}}"{{/defaultValue}}) {{{paramName}}}: {{>optionalDataType}}{{/isCookieParam}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/formParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/formParams.mustache
index 745b71b179c..6d725334a16 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-spring/formParams.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-spring/formParams.mustache
@@ -1 +1 @@
-{{#isFormParam}}{{^isFile}}{{#swagger2AnnotationLibrary}}@Parameter(description = "{{{description}}}"{{#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}} @RequestParam(value = "{{baseName}}"{{#required}}, required = true{{/required}}{{^required}}, required = false{{/required}}) {{paramName}}: {{>optionalDataType}} {{/isFile}}{{#isFile}}{{#swagger2AnnotationLibrary}}@Parameter(description = "{{{description}}}"){{/swagger2AnnotationLibrary}}{{#swagger1AnnotationLibrary}}@ApiParam(value = "file detail"){{/swagger1AnnotationLibrary}} {{#useBeanValidation}}@Valid{{/useBeanValidation}} @RequestPart("{{baseName}}"{{#required}}, required = true{{/required}}{{^required}}, required = false{{/required}}) {{paramName}}: {{>optionalDataType}}{{/isFile}}{{/isFormParam}}
\ No newline at end of file
+{{#isFormParam}}{{^isFile}}{{#swagger2AnnotationLibrary}}@Parameter(description = "{{{description}}}"{{#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}} @RequestParam(value = "{{baseName}}"{{#required}}, required = true{{/required}}{{^required}}, required = false{{/required}}) {{{paramName}}}: {{>optionalDataType}} {{/isFile}}{{#isFile}}{{#swagger2AnnotationLibrary}}@Parameter(description = "{{{description}}}"){{/swagger2AnnotationLibrary}}{{#swagger1AnnotationLibrary}}@ApiParam(value = "file detail"){{/swagger1AnnotationLibrary}} {{#useBeanValidation}}@Valid{{/useBeanValidation}} @RequestPart("{{baseName}}"{{#required}}, required = true{{/required}}{{^required}}, required = false{{/required}}) {{{paramName}}}: {{>optionalDataType}}{{/isFile}}{{/isFormParam}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/headerParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/headerParams.mustache
index 53c8e620d2a..ed62c902c3d 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-spring/headerParams.mustache
+++ b/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}}
\ No newline at end of file
+{{#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}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/pathParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/pathParams.mustache
index 18137b282cc..8d5b61c8b05 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-spring/pathParams.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-spring/pathParams.mustache
@@ -1 +1 @@
-{{#isPathParam}}{{#useBeanValidation}}{{>beanValidationPathParams}}{{/useBeanValidation}}{{#swagger2AnnotationLibrary}}@Parameter(description = "{{{description}}}"{{#required}}, required = true{{/required}}{{#allowableValues}}{{#defaultValue}}, schema = Schema(allowableValues = [{{#enumVars}}"{{#lambdaEscapeInNormalString}}{{{value}}}{{/lambdaEscapeInNormalString}}"{{^-last}}, {{/-last}}{{/enumVars}}]{{^isContainer}}, defaultValue = {{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{{defaultValue}}}{{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{/isContainer}}{{/defaultValue}}{{/allowableValues}}{{#allowableValues}}{{^defaultValue}}, schema = Schema(allowableValues = [{{#enumVars}}"{{#lambdaEscapeInNormalString}}{{{value}}}{{/lambdaEscapeInNormalString}}"{{^-last}}, {{/-last}}{{/enumVars}}]){{/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 = "{{#enumVars}}{{#lambda.escapeDoubleQuote}}{{{value}}}{{/lambda.escapeDoubleQuote}}{{^-last}}, {{/-last}}{{/enumVars}}"{{/allowableValues}}{{#defaultValue}}, defaultValue = "{{{.}}}"{{/defaultValue}}){{/swagger1AnnotationLibrary}} @PathVariable("{{baseName}}") {{paramName}}: {{>optionalDataType}}{{/isPathParam}}
\ No newline at end of file
+{{#isPathParam}}{{#useBeanValidation}}{{>beanValidationPathParams}}{{/useBeanValidation}}{{#swagger2AnnotationLibrary}}@Parameter(description = "{{{description}}}"{{#required}}, required = true{{/required}}{{#allowableValues}}{{#defaultValue}}, schema = Schema(allowableValues = [{{#enumVars}}"{{#lambdaEscapeInNormalString}}{{{value}}}{{/lambdaEscapeInNormalString}}"{{^-last}}, {{/-last}}{{/enumVars}}]{{^isContainer}}, defaultValue = {{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{{defaultValue}}}{{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{/isContainer}}{{/defaultValue}}{{/allowableValues}}{{#allowableValues}}{{^defaultValue}}, schema = Schema(allowableValues = [{{#enumVars}}"{{#lambdaEscapeInNormalString}}{{{value}}}{{/lambdaEscapeInNormalString}}"{{^-last}}, {{/-last}}{{/enumVars}}]){{/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 = "{{#enumVars}}{{#lambda.escapeDoubleQuote}}{{{value}}}{{/lambda.escapeDoubleQuote}}{{^-last}}, {{/-last}}{{/enumVars}}"{{/allowableValues}}{{#defaultValue}}, defaultValue = "{{{.}}}"{{/defaultValue}}){{/swagger1AnnotationLibrary}} @PathVariable("{{baseName}}") {{{paramName}}}: {{>optionalDataType}}{{/isPathParam}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/queryParams.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/queryParams.mustache
index 3c254c53ff0..2bf764c9963 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-spring/queryParams.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-spring/queryParams.mustache
@@ -1 +1 @@
-{{#isQueryParam}}{{#useBeanValidation}}{{>beanValidationQueryParams}}{{/useBeanValidation}}{{#swagger2AnnotationLibrary}}@Parameter(description = "{{{description}}}"{{#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}}{{^isContainer}}{{#defaultValue}}, defaultValue = {{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{{defaultValue}}}{{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{/defaultValue}}{{/isContainer}}){{/swagger1AnnotationLibrary}}{{#useBeanValidation}} @Valid{{/useBeanValidation}}{{^isModel}} @RequestParam(value = "{{baseName}}"{{#required}}, required = true{{/required}}{{^required}}, required = false{{/required}}{{^isContainer}}{{#defaultValue}}, defaultValue = {{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{{defaultValue}}}{{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{/defaultValue}}{{/isContainer}}){{/isModel}}{{#isDate}} @org.springframework.format.annotation.DateTimeFormat(iso = org.springframework.format.annotation.DateTimeFormat.ISO.DATE){{/isDate}}{{#isDateTime}} @org.springframework.format.annotation.DateTimeFormat(iso = org.springframework.format.annotation.DateTimeFormat.ISO.DATE_TIME){{/isDateTime}} {{paramName}}: {{>optionalDataType}}{{/isQueryParam}}
\ No newline at end of file
+{{#isQueryParam}}{{#useBeanValidation}}{{>beanValidationQueryParams}}{{/useBeanValidation}}{{#swagger2AnnotationLibrary}}@Parameter(description = "{{{description}}}"{{#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}}{{^isContainer}}{{#defaultValue}}, defaultValue = {{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{{defaultValue}}}{{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{/defaultValue}}{{/isContainer}}){{/swagger1AnnotationLibrary}}{{#useBeanValidation}} @Valid{{/useBeanValidation}}{{^isModel}} @RequestParam(value = "{{baseName}}"{{#required}}, required = true{{/required}}{{^required}}, required = false{{/required}}{{^isContainer}}{{#defaultValue}}, defaultValue = {{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{{defaultValue}}}{{^isString}}"{{/isString}}{{#isString}}{{#isEnum}}"{{/isEnum}}{{/isString}}{{/defaultValue}}{{/isContainer}}){{/isModel}}{{#isDate}} @org.springframework.format.annotation.DateTimeFormat(iso = org.springframework.format.annotation.DateTimeFormat.ISO.DATE){{/isDate}}{{#isDateTime}} @org.springframework.format.annotation.DateTimeFormat(iso = org.springframework.format.annotation.DateTimeFormat.ISO.DATE_TIME){{/isDateTime}} {{{paramName}}}: {{>optionalDataType}}{{/isQueryParam}}
\ No newline at end of file
diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/serviceImpl.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/serviceImpl.mustache
index 75f4fda598c..57f09239906 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-spring/serviceImpl.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-spring/serviceImpl.mustache
@@ -11,7 +11,7 @@ import org.springframework.stereotype.Service
 class {{classname}}ServiceImpl : {{classname}}Service {
 {{#operation}}
 
-    override {{#reactive}}{{^isArray}}suspend {{/isArray}}{{/reactive}}fun {{operationId}}({{#allParams}}{{paramName}}: {{^isBodyParam}}{{>optionalDataType}}{{/isBodyParam}}{{#isBodyParam}}{{^reactive}}{{>optionalDataType}}{{/reactive}}{{#reactive}}{{^isArray}}{{>optionalDataType}}{{/isArray}}{{#isArray}}Flow<{{{baseType}}}>{{/isArray}}{{/reactive}}{{/isBodyParam}}{{^-last}}, {{/-last}}{{/allParams}}): {{>returnTypes}} {
+    override {{#reactive}}{{^isArray}}suspend {{/isArray}}{{/reactive}}fun {{operationId}}({{#allParams}}{{{paramName}}}: {{^isBodyParam}}{{>optionalDataType}}{{/isBodyParam}}{{#isBodyParam}}{{^reactive}}{{>optionalDataType}}{{/reactive}}{{#reactive}}{{^isArray}}{{>optionalDataType}}{{/isArray}}{{#isArray}}Flow<{{{baseType}}}>{{/isArray}}{{/reactive}}{{/isBodyParam}}{{^-last}}, {{/-last}}{{/allParams}}): {{>returnTypes}} {
         TODO("Implement me")
     }
 {{/operation}}