[BUG][Java][Spring] Incorrect code generation with regular expressions
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Description
Using the java Spring generator, string regex patterns have forward slashes somehow additionally escaped, changing the meaning of the pattern.
openapi-generator version
Versions 4.3.1 and 5.0.0
OpenAPI declaration file content or URL
openapi: 3.0.2
...
components:
parameters:
ClientKey:
name: clientKey
in: header
description: "Client key"
schema:
type: string
pattern: '^(?!\s*$).+'
...
Generation Details
Generated line:
default ResponseEntity<Void> deleteTokens(@Pattern(regexp="^(?!\\s*$).+") @ApiParam(value = "User token") String userToken) {
return new ResponseEntity<>(HttpStatus.NOT_IMPLEMENTED);
}
Expected line:
default ResponseEntity<Void> deleteTokens(@Pattern(regexp="^(?!\s*$).+") @ApiParam(value = "User token") String userToken) {
return new ResponseEntity<>(HttpStatus.NOT_IMPLEMENTED);
}
As you can see, the pattern (@Pattern(regexp="^(?!\\s*$).+") ) has one slash too many and modifies the regex.