Scala final vs val for concurrency visibility

Question

In Java, when using an object across multiple threads (and in general), it is good practice to make fields final. For example,

public class ShareMe {
    pr         


        

Answer 1

I think I may have misunderstood how var is compiled. I created the sample class

class AVarTest(name:String) {
   def printName() {
     println(name)
   }
}

I ran javap -private and it resulted in

public class AVarTest extends java.lang.Object implements scala.ScalaObject{
    private final java.lang.String name;
    public void printName();
    public AVarTest(java.lang.String);
}

And name is actually compiled to final.

This is also shown in Scala val has to be guarded with synchronized for concurrent access?