Bug: kafka-specs validate fails on ACLS

[gquintana]

I run bin/kafka-specs validate --file-path=etc/kafka-specs.yml

java.lang.RuntimeException: Failed to serialize specification into YAML: No serializer found for class io.streamthoughts.kafka.specs.model.V1AccessPermission and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: io.streamthoughts.kafka.specs.model.V1SpecFile["specs"]->io.streamthoughts.kafka.specs.model.V1SpecsObject["security"]->io.streamthoughts.kafka.specs.model.V1SecurityObject["roles"]->java.util.ArrayList[0]->io.streamthoughts.kafka.specs.model.V1AccessRoleObject["permission"])
        at io.streamthoughts.kafka.specs.YAMLClusterSpecWriter.write(YAMLClusterSpecWriter.java:45)
        at io.streamthoughts.kafka.specs.command.validate.ValidateCommand.call(ValidateCommand.java:64)
        at io.streamthoughts.kafka.specs.command.validate.ValidateCommand.call(ValidateCommand.java:32)
        at picocli.CommandLine.executeUserObject(CommandLine.java:1953)
        at picocli.CommandLine.access$1300(CommandLine.java:145)
        at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2352)
        at picocli.CommandLine$RunLast.handle(CommandLine.java:2346)
        at picocli.CommandLine$RunLast.handle(CommandLine.java:2311)
        at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2179)
        at picocli.CommandLine.execute(CommandLine.java:2078)
        at io.streamthoughts.kafka.specs.KafkaSpecs.main(KafkaSpecs.java:62)

Using kafka-specs 0.5.0