[BUG][JAVA][SPRING] Bug using Multipart as array: incompatible types: java.util.List<org.springframework.web.multipart.MultipartFile> cannot be converted to org.springframework.web.multipart.MultipartFile #20678
Description
Description
Openapi generator for Java code does not handle well creating a multipart as array.
openapi-generator version
Lastest maven version: 7.12.0
OpenAPI declaration file content or url
/test/v1/test:
post:
tags:
- Test
summary: multipartN
operationId: multipartN
requestBody:
content:
multipart/form-data:
schema:
type: object
properties:
files:
type: array
items:
type: string
format: binary ##**byte**
responses:
201:
description: OKGeneration Details
@RequestMapping(
method = RequestMethod.POST,
value = "/test/v1/test",
consumes = { "multipart/form-data" }
)
default ResponseEntity<Void> _multipartN(
@RequestPart(value = "files", required = false) List<MultipartFile> files ) {
return multipartN(files);
}
// Override this method
default ResponseEntity<Void> multipartN(MultipartFile files) { // **This should be List<MultipartFile> files**
return new ResponseEntity<>(HttpStatus.NOT_IMPLEMENTED);
}This fails to compile because its trying to cast a list into an object.
If the same code is used but format: byte instead of binary the generated code produces a correct method that expects the List:
@RequestMapping(
method = RequestMethod.POST,
value = "/test/v1/test",
consumes = { "multipart/form-data" }
)
default ResponseEntity<Void> _multipartN(
@Valid @RequestPart(value = "files", required = false) List<byte[]> files ) {
return multipartN(files);
}
// Override this method
default ResponseEntity<Void> multipartN(List<byte[]> files) {
return new ResponseEntity<>(HttpStatus.NOT_IMPLEMENTED);
}Steps to reproduce
Generate Java code with the above yaml example and lastest version, when compiling and generating java code an error will throw:
incompatible types: java.util.List<org.springframework.web.multipart.MultipartFile> cannot be converted to org.springframework.web.multipart.MultipartFile