protected Set<RequestMethod> getDefaultAllowedHttpMethods() {
		RequestMethod[] allowedRequestMethods = { RequestMethod.GET, RequestMethod.POST, RequestMethod.PUT, RequestMethod.PATCH, RequestMethod.DELETE, RequestMethod.OPTIONS, RequestMethod.HEAD };
		return new HashSet<>(Arrays.asList(allowedRequestMethods));
	}
Gets default allowed http methods.

@return the default allowed http methods
springdoc-openapi-starter-common/src/main/java/org/springdoc/api/AbstractOpenApiResource.java