3 ms·

Keep in mind, you can use Kotlin in any JDK8 project and instantly get all those features. What you're proposing requires upgrading to a new JDK.

• lmm 4y ago
  Upgrading to a new JDK is significantly less work than upgrading all your tools to support a new language.
• kaba0 4y ago
  JDK 8 came out in 2014 - Internet Explorer was still widespread at the time.