Java code generated from swagger.yaml using swagger-codegen-cli causes NPE

[MosheElisha]

Hi,

1. Generate Java code from the swagger.yaml using swagger-codegen-cli with this command:

java -jar modules/swagger-codegen-cli/target/swagger-codegen-cli.jar generate -i "/tmp/swagger.yaml" -l jaxrs-cxf -o /tmp/project

2. Use the generated classes in a spring boot application and enable the Swagger2Feature:

endpoint.setFeatures(Collections.singletonList(new Swagger2Feature()));

You get a java.lang.NullPointerException: null at io.swagger.models.refs.GenericRef.<init>(GenericRef.java:44) attached npe.log

The cause is probably the generated model class Object.java.txt which is generated without properties according to the definition in https://github.com/openservicebrokerapi/servicebroker/blob/e953ad2b478264900f6376ec886bb5921073aac2/swagger.yaml#L799

The workaround is to delete the generated Object.java file and let all the classes that uses it (for example, ServiceBindingVolumeMountDevice.mountConfig) to use java.lang.Object instead.

[mattmcneeney]

Thanks for raising this @MosheElisha - we will see if we can find someone to look into this next week.

[jberkhahn]

/dibs

[jberkhahn]

see PR #696

[MosheElisha]

Thanks!

[pivotal-marcela-campo]

Closing as this was fixed with PR already merged