Error generating code for 5GC_APIs

Description

Hello. I'm trying to generate code from TS29510_Nnrf_NFManagement.yaml at https://github.com/jdegre/5GC_APIs. However, it failed with errors. When I modified the original yaml then it succeeded. Errors are mostly related to allOf, oneOf, and anyOf keywords.

P.S. Please see the modified yaml file bellow:
TS29510_Nnrf_NFManagement.mod.yaml.txt

Swagger-codegen version

4.0.0-SNAPSHOT

Swagger declaration file content or url

https://github.com/jdegre/5GC_APIs/blob/master/TS29510_Nnrf_NFManagement.yaml

Command line used for generation

java -jar openapi-generator-cli.jar generate -g cpp-restsdk -i 5GC_APIs-master\TS29510_Nnrf_NFManagement.yaml -o MyOutput\

Error output

Exception in thread "main" java.lang.RuntimeException: Could not process model 'NotificationData'.Please make sure that your schema is correct! at org.openapitools.codegen.DefaultGenerator.generateModels(DefaultGenerator.java:457) at org.openapitools.codegen.DefaultGenerator.generate(DefaultGenerator.java:892) at org.openapitools.codegen.cmd.Generate.run(Generate.java:347) at org.openapitools.codegen.OpenAPIGenerator.main(OpenAPIGenerator.java:62) Caused by: java.lang.RuntimeException: Please report the issue: Cannot process Composed Schema in addProperties: ...

Steps to reproduce

• Download 5GC_APIs-master.zip from https://github.com/jdegre/5GC_APIs and extract to directory 5GC_APIs-master.
• Create a directory called MyOutput.
• Run the command line mentioned above.

Thank you

Start by downloading 5GC_APIs and running the reported java -jar openapi-generator-cli.jar command with TS29510_Nnrf_NFManagement.yaml and the cpp-restsdk generator. Trace DefaultGenerator.generateModels and the reported composed-schema failure in addProperties; done means the original YAML generates successfully without modification.