Consider Kotlin metadata annotation for Kotlin class kind retrieval

After upgrading from Kotlin 1.2.10 to 1.2.20 I'm getting the error log below. My own class DbConfig (because of TLS connection w/ MongoDB) is derived from org.springframework.data.mongodb.config.AbstractMongoConfiguration, and just inherits mappingMongoConverter() which invokes org.springframework.data.mongodb.config.MongoConfigurationSupport.mongoMappingContext(). I'll attach my own files DbConfig.kt and DbReactiveConfig.kt.

The error log:

2018-01-17 13:16:14.518 WARN 16544 — [ restartedMain] onfigReactiveWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start reactive web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'httpHandler' defined in class path resource [org/springframework/boot/autoconfigure/web/reactive/HttpHandlerAutoConfiguration$AnnotationConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.http.server.reactive.HttpHandler]: Factory method 'httpHandler' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.autoconfigure.web.reactive.WebFluxAutoConfiguration$EnableWebFluxConfiguration': Unsatisfied dependency expressed through method 'setConfigurers' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration': Unsatisfied dependency expressed through field 'reactiveUserDetailsService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'customUserDetailsService' defined in file [C:\Users\ziju0001\IdeaProjects\kunde\build\classes\kotlin\main\de\hska\kunde\config\security\CustomUserDetailsService.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'customUserDetailsRepository': Cannot resolve reference to bean 'reactiveMongoTemplate' while setting bean property 'reactiveMongoOperations'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'reactiveMongoTemplate' defined in class path resource [org/springframework/boot/autoconfigure/data/mongo/MongoReactiveDataAutoConfiguration.class]: Unsatisfied dependency expressed through method 'reactiveMongoTemplate' parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mappingMongoConverter' defined in class path resource [de/hska/kunde/config/DbReactiveConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.mongodb.core.convert.MappingMongoConverter]: Factory method 'mappingMongoConverter' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoMappingContext' defined in class path resource [de/hska/kunde/config/DbConfig.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: kotlin/reflect/jvm/internal/impl/load/kotlin/reflect/ReflectKotlinClass