Skip default value for container in Spring generators

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Description of the PR

For https://github.com/OpenAPITools/openapi-generator/pull/1552

cc @bbdouglas (2017/07) @JFCote (2017/08) @sreeshas (2017/08) @jfiala (2017/08) @lukoyanov (2017/09) @cbornet (2017/09) @jeff9finger (2018/01)

modules/openapi-generator/src/main/resources/JavaSpring/libraries/spring-cloud/formParams.mustache

-{{#isFormParam}}{{^isFile}}@ApiParam(value = "{{{description}}}"{{#required}}, required=true{{/required}} {{#allowableValues}}, allowableValues="{{{allowableValues}}}"{{/allowableValues}}{{#defaultValue}}, defaultValue="{{{defaultValue}}}"{{/defaultValue}}) @RequestParam(value="{{baseName}}"{{#required}}, required=true{{/required}}{{^required}}, required=false{{/required}})  {{{dataType}}} {{paramName}}{{/isFile}}{{#isFile}}@ApiParam(value = "file detail") @RequestParam("{{baseName}}") MultipartFile {{paramName}}{{/isFile}}{{/isFormParam}}
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+{{#isFormParam}}{{^isFile}}@ApiParam(value = "{{{description}}}"{{#required}}, required=true{{/required}} {{#allowableValues}}, allowableValues="{{{allowableValues}}}"{{/allowableValues}}{{^isContainer}}{{#defaultValue}}, defaultValue="{{{defaultValue}}}"{{/defaultValue}}{{/isContainer}}) @RequestParam(value="{{baseName}}"{{#required}}, required=true{{/required}}{{^required}}, required=false{{/required}})  {{{dataType}}} {{paramName}}{{/isFile}}{{#isFile}}@ApiParam(value = "file detail") @RequestParam("{{baseName}}") MultipartFile {{paramName}}{{/isFile}}{{/isFormParam}}
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modules/openapi-generator/src/main/resources/JavaSpring/bodyParams.mustache

-{{#isBodyParam}}@ApiParam(value = "{{{description}}}" {{#required}},required=true{{/required}} {{^isContainer}}{{#allowableValues}}, allowableValues="{{{allowableValues}}}"{{/allowableValues}}{{/isContainer}}{{#defaultValue}}, defaultValue="{{{defaultValue}}}"{{/defaultValue}})  {{#useBeanValidation}}@Valid{{/useBeanValidation}} @RequestBody {{^reactive}}{{{dataType}}}{{/reactive}}{{#reactive}}{{^isListContainer}}Mono{{/isListContainer}}{{#isListContainer}}Flux{{/isListContainer}}<{{{baseType}}}>{{/reactive}} {{paramName}}{{/isBodyParam}}
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+{{#isBodyParam}}@ApiParam(value = "{{{description}}}" {{#required}},required=true{{/required}} {{^isContainer}}{{#allowableValues}}, allowableValues="{{{allowableValues}}}"{{/allowableValues}}{{#defaultValue}}, defaultValue="{{{defaultValue}}}"{{/defaultValue}}{{/isContainer}})  {{#useBeanValidation}}@Valid{{/useBeanValidation}} @RequestBody {{^reactive}}{{{dataType}}}{{/reactive}}{{#reactive}}{{^isListContainer}}Mono{{/isListContainer}}{{#isListContainer}}Flux{{/isListContainer}}<{{{baseType}}}>{{/reactive}} {{paramName}}{{/isBodyParam}}
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modules/openapi-generator/src/main/resources/JavaSpring/formParams.mustache

-{{#isFormParam}}{{^isFile}}@ApiParam(value = "{{{description}}}"{{#required}}, required=true{{/required}}{{#allowableValues}}, allowableValues="{{#values}}{{{.}}}{{^-last}}, {{/-last}}{{#-last}}{{/-last}}{{/values}}"{{/allowableValues}}{{#defaultValue}}, defaultValue="{{{defaultValue}}}"{{/defaultValue}}) @RequestParam(value="{{baseName}}"{{#required}}, required=true{{/required}}{{^required}}, required=false{{/required}})  {{{dataType}}} {{paramName}}{{/isFile}}{{#isFile}}@ApiParam(value = "file detail") {{#useBeanValidation}}@Valid{{/useBeanValidation}} @RequestPart("file") MultipartFile {{baseName}}{{/isFile}}{{/isFormParam}}
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+{{#isFormParam}}{{^isFile}}@ApiParam(value = "{{{description}}}"{{#required}}, required=true{{/required}}{{#allowableValues}}, allowableValues="{{#values}}{{{.}}}{{^-last}}, {{/-last}}{{#-last}}{{/-last}}{{/values}}"{{/allowableValues}}{{^isContainer}}{{#defaultValue}}, defaultValue="{{{defaultValue}}}"{{/defaultValue}}{{/isContainer}}) @RequestParam(value="{{baseName}}"{{#required}}, required=true{{/required}}{{^required}}, required=false{{/required}})  {{{dataType}}} {{paramName}}{{/isFile}}{{#isFile}}@ApiParam(value = "file detail") {{#useBeanValidation}}@Valid{{/useBeanValidation}} @RequestPart("file") MultipartFile {{baseName}}{{/isFile}}{{/isFormParam}}
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modules/openapi-generator/src/main/resources/JavaSpring/headerParams.mustache

-{{#isHeaderParam}}@ApiParam(value = "{{{description}}}" {{#required}},required=true{{/required}}{{#allowableValues}}, allowableValues="{{#values}}{{{.}}}{{^-last}}, {{/-last}}{{#-last}}{{/-last}}{{/values}}"{{/allowableValues}}{{#defaultValue}}, defaultValue="{{{defaultValue}}}"{{/defaultValue}}) @RequestHeader(value="{{baseName}}", required={{#required}}true{{/required}}{{^required}}false{{/required}}) {{>optionalDataType}} {{paramName}}{{/isHeaderParam}}
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+{{#isHeaderParam}}@ApiParam(value = "{{{description}}}" {{#required}},required=true{{/required}}{{#allowableValues}}, allowableValues="{{#values}}{{{.}}}{{^-last}}, {{/-last}}{{#-last}}{{/-last}}{{/values}}"{{/allowableValues}}{{^isContainer}}{{#defaultValue}}, defaultValue="{{{defaultValue}}}"{{/defaultValue}}{{/isContainer}}) @RequestHeader(value="{{baseName}}", required={{#required}}true{{/required}}{{^required}}false{{/required}}) {{>optionalDataType}} {{paramName}}{{/isHeaderParam}}
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modules/openapi-generator/src/main/resources/JavaSpring/pathParams.mustache

-{{#isPathParam}}{{#useBeanValidation}}{{>beanValidationPathParams}}{{/useBeanValidation}}@ApiParam(value = "{{{description}}}"{{#required}},required=true{{/required}}{{#allowableValues}}, allowableValues = "{{#enumVars}}{{#lambdaEscapeDoubleQuote}}{{{value}}}{{/lambdaEscapeDoubleQuote}}{{^-last}}, {{/-last}}{{#-last}}{{/-last}}{{/enumVars}}"{{/allowableValues}}{{#defaultValue}}, defaultValue="{{{defaultValue}}}"{{/defaultValue}}) @PathVariable("{{baseName}}") {{>optionalDataType}} {{paramName}}{{/isPathParam}}
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+{{#isPathParam}}{{#useBeanValidation}}{{>beanValidationPathParams}}{{/useBeanValidation}}@ApiParam(value = "{{{description}}}"{{#required}},required=true{{/required}}{{#allowableValues}}, allowableValues = "{{#enumVars}}{{#lambdaEscapeDoubleQuote}}{{{value}}}{{/lambdaEscapeDoubleQuote}}{{^-last}}, {{/-last}}{{#-last}}{{/-last}}{{/enumVars}}"{{/allowableValues}}{{^isContainer}}{{#defaultValue}}, defaultValue="{{{defaultValue}}}"{{/defaultValue}}{{/isContainer}}) @PathVariable("{{baseName}}") {{>optionalDataType}} {{paramName}}{{/isPathParam}}
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