anchor.diff:  * https://github.com/sdeleuze/spring-kotlin-deepdive[spring-kotlin-deepdive]: A step-by-step migration guide for Boot 1.0 and Java to Boot 2.0 and Kotlin
   * https://github.com/spring-cloud/spring-cloud-gcp/tree/master/spring-cloud-gcp-kotlin-samples/spring-cloud-gcp-kotlin-app-sample[spring-cloud-gcp-kotlin-app-sample]: Spring Boot with Google Cloud Platform Integrations
   
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   === Issues
   
   The following list categorizes the pending issues related to Spring and Kotlin support:
  
positive.code: 
  As in Java, `users` in Kotlin is strongly typed, but Kotlin's clever type inference allows
  for shorter syntax.
  
  
  
  
  [[kotlin-null-safety]]
  == Null-safety
  
negative.code: 	@Bean
  	fun defaultPropertyConfigurer() = PropertySourcesPlaceholderConfigurer()
  ----
  
  
  === Checked Exceptions
  