Multi-thread state visibility in Java: is there a way to turn the JVM into the worst case scenario?

Question

Suppose our code has 2 threads (A and B) have a reference to the same instance of this class somewhere:

public class MyValueHolder {

    private int value = 1;
         


        

Answer 1

Here's a simple way: just comment out the code for setValue. You can uncomment it after testing. Since in many cases like this a mechanism is needed to fake failures, it would be a good idea to build a general mechanism for all such cases.