scalaのfinal valをコンパイルしてJava Decompilerで逆コンパイルしてみた

FinalVal.java

// finalVal.scalaをscalacしてJava Decompilerで逆コンパイルした結果
// http://java.decompiler.free.fr/

import scala.ScalaObject;
import scala.collection.mutable.StringBuilder;
import scala.reflect.ScalaSignature;

@ScalaSignature(bytes="\006\001e2A!\001\002\001\013\tAa)\0338bYZ\013GNC\001\004\003\035aT-\0349usz\032\001aE\002\001\r9\001\"a\002\007\016\003!Q!!\003\006\002\t1\fgn\032\006\002\027\005!!.\031<b\023\ti\001B\001\004PE*,7\r\036\t\003\037Ii\021\001\005\006\002#\005)1oY1mC&\0211\003\005\002\f'\016\fG.Y(cU\026\034G\017C\003\026\001\021\005a#\001\004=S:LGO\020\013\002/A\021\001\004A\007\002\005!9!\004\001b\001\n\013Y\022A\0014w+\005ar\"A\017\"\003y\tA!\0312dI\"1\001\005\001Q\001\016q\t1A\032<!\021\035\021\003A1A\005\002\r\n!A^\031\026\003\021\002\"aB\023\n\005\031B!AB*ue&tw\r\003\004)\001\001\006I\001J\001\004mF\002\003b\002\026\001\005\004%\taI\001\003mJBa\001\f\001!\002\023!\023a\001<3A!9a\006\001b\001\n\003\031\023A\001<4\021\031\001\004\001)A\005I\005\031ao\r\021\t\017I\002!\031!C\001G\005\021a\017\016\005\007i\001\001\013\021\002\023\002\007Y$\004\005C\0047\001\t\007I\021A\022\002\005Y,\004B\002\035\001A\003%A%A\002wk\001\002")
public class FinalVal
  implements ScalaObject
{
  private final String fv;
  private final String v1 = "abcd";
  private final String v2 = v1();
  private final String v3 = "abcd";
  private final String v4 = v3();
  private final String v5 = new StringBuilder().append(v4()).append("abcd").toString();

  public final String fv()
  {
    return "abcd"; } 
  public String v1() { return this.v1; } 
  public String v2() { return this.v2; } 
  public String v3() { return this.v3; } 
  public String v4() { return this.v4; } 
  public String v5() { return this.v5;
  }
}

finalVal.scala

class FinalVal {
  final val fv = "abcd"
  val v1 = fv
  val v2 = v1
  val v3 = "abcd"
  val v4 = v3
  val v5 = v4 + fv
}

script.scala

val finalVal = new FinalVal()
val clazz = classOf[FinalVal]
clazz.getDeclaredMethods.foreach { f =>
  f.setAccessible(true)
  println(f.getName + ":" + f.get(finalVal))
}
/*
fv:null
v1:abcd
v2:abcd
v3:abcd
v4:abcd
v5:abcdabcd
*/