Someone did the JMH test for the cost of explicit null checks. https://sites.google.com/a/athaydes.com/renato-athaydes/posts/kotlinshiddencosts-benchmarks http

Someone did the JMH test for the cost of explicit null checks. https://sites.google.com/a/athaydes.com/renato-athaydes/posts/kotlinshiddencosts-benchmarks https://sites.google.com/a/athaydes.com/renato-athaydes/post... Apparently the JVM can inline, then do null check elimination.