Scala vs Java compilation speed experiment

A.java

class A1 {
    String f1(String x) { return x; }
    String f2(String x) { return x; }
    .
    .
    String f100(String x) { return x; }
}

A.scala

class A1 {
    def f1(x: String): String = x
    def f2(x: String): String = x
    .
    .
    def f100(x: String): String = x
}