code generator compile error on generating camunda open api json

hi everyone
I'm using below configuration to generate camunda open api rest interfaces:

<plugin>
    <groupId>io.swagger.codegen.v3</groupId>
    <artifactId>swagger-codegen-maven-plugin</artifactId>
    <version>3.0.30</version>
    <executions>
        <execution>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <inputSpec>${project.basedir}/src/main/resources/openapi.json</inputSpec>
                <output>${project.basedir}/src/main/java2</output>
                <language>spring</language>
                <library>spring-cloud</library>
                <configOptions>
                    <generateForOpenFeign>true</generateForOpenFeign>
                    <interfaceOnly>true</interfaceOnly>
                    <dateLibrary>java8</dateLibrary>
                </configOptions>
            </configuration>
        </execution>
    </executions>
</plugin>

and I'm using camunda official open api json defined in below dependency. i put the json in my resources and generate the code.

<dependency>
    <groupId>org.camunda.bpm</groupId>
    <artifactId>camunda-engine-rest-openapi</artifactId>
    <version>7.15.0</version>
</dependency>

but when it generates the code there is a compile error on ProcessInstaceApi class as below. seems like /n is not converted correctly.

(@Parameter(in = ParameterIn.DEFAULT, description = "Please note that if both processInstances and historicProcessInstanceQuery are provided,
then the resulting execution will be performed on the union of these sets.
**Unallowed property**: `processInstanceQuery`", schema=@Schema()) @Valid @RequestBody SetJobRetriesByProcessDto body) {

is there any problem with camunda open api json file? or the problem is in code generation?
thanks' in advance.

Start with the Maven swagger-codegen configuration, the copied openapi.json from camunda-engine-rest-openapi 7.15.0, and the generated ProcessInstaceApi class. Run the generation and compilation to isolate whether the multiline description is emitted incorrectly; done means the generated source compiles or the responsible input/output is clearly identified.