Intellij调试器：true变为false，这是怎么回事...？

Question

I have this config class:

public class ShiroConfiguration {
  private final boolean enabled = false;

    public boolean isEnabled() {
      return enabled; // ****
    }

Obviously, the mistake is that I made the enabled flag 'final', so it can never be anything but false.

At runtime, I was trying to figure out why my config was not enabled, so ran the code in the debugger (in IntelliJ), with a break-point set on the starred line. The debugger showed that enabled had the value 'true', yet this method was definitely returning the value 'false'.

Why can the debugger see an incorrect version of the object?

I cannot comprehend how this is possible. Is it a bug in IntelliJ, or in the Java debugging interface?

==============

Here is what I see in the debugger at a breakpoint on the line that calls config.isEnabled():

Answer 1

If you haven't made any mistake in calling the method, ie called a method of different class, this definitely seems to a bug in the debugger. The debugger seems to be neglecting the final keyword in the program temporarily. Just try removing the final keyword for a moment, and see if this is the case.