Java - Immutable array thread-safety

Question

I have a question regarding the Java Memory Model. Here is a simple class presenting the problem:

public class Immutable         


        

Answer 1

your example is not quite right. in order to get the final field assurance, you need:

public ImmutableIntArray() {
    int tmparray = new int[10];
    for (int i = 0; i < 10; i++) {
        tmparray[i] = i;
    }
    array = tmparray;
}