## Compiler version Affects `3.0.0` to `3.1.2-RC1`. Does not affect `2.13.8`. ## Minimized code ```Scala trait A { private val ? = "" def a = ? } @main def run(): Unit = println(new A {}.a) ``` [Link to 3.1.1 Scastie](https://scastie.scala-lang.org/guffMVjITtG35SjoriJ2wQ) ## Output ``` null ``` ## Expectation This program should print an empty line, not `null`. Observations: the problem does not occur when * `?` is renamed to an alphanumeric identifier (**!**) * `?` is a definition instead of a value * `A` is a class instead of a trait * `?` is protected or public The `?` can be replaced with any other symbol e.g. `*`, `|||`, ... (all of those will trigger the same problem) When replacing `""` by e.g. `1`, the program prints `0` which confirms that it is a problem related to initialization.