#ConfigurationProperties failing to parse yaml file - spring-boot

Question

Im trying to convert my yaml file into a list of objects that I can query during runtime. Ive tried to follow the documentation however my use case is a little more complicated than all the examples that I have seen and Im not sure what im missing.
When I try to run the below code I dont get any errors. But when I autowire the component Its empty.
#Data
#Component
#ConfigurationProperties(prefix = "kafka")
public class KafkaProperties {
private Map<String, KafkaTopicProperties> topics = new HashMap<>();
#Data
public class KafkaTopicProperties {
Map<String, KeyProperties> key;
Map<String, ValueProperties> value;
Map<String, BootstrapProperties> bootstrap;
#Data
public class KeyProperties {
Map<String, String> serializer;
}
#Data
public class ValueProperties {
Map<String, String> serializer;
}
#Data
public class BootstrapProperties {
Map<String, String> servers;
}
}
}
kafka:
topic-name:
key:
serializer: org.apache.kafka.common.serialization.StringSerializer
value:
serializer: org.apache.kafka.common.serialization.StringSerializer
bootstrap:
servers: localhost:9092
other-topic:
key:
serializer: org.apache.kafka.common.serialization.StringSerializer
value:
serializer: org.apache.kafka.common.serialization.StringSerializer
bootstrap:
servers: localhost:9092
#Autowired
KafkaProperties properties;