[Solved] Java 8 doesn’t compile on Intellij15
Make sure that you correctly selected the JDK. In IntelliJ you should go to: File -> Project Structure… project settings tab, and make sure the project SDK points to the location of your java 8 JDK, (something like: C:\Program Files\java\jdk1.8.0_45) And, of course, make sure the project language level is set to 8 – Lambdas, … Read more