changing final variables through reflection, why difference between static and non-static final variable

Question

Please refer to the below code. When I run the code, I am able to change the value of a final non-static variable. But if I try to change the value of a final static variab

Answer 1

The javadoc is clear:

If the underlying field is final, the method throws an IllegalAccessException unless setAccessible(true) has succeeded for this Field object and the field is non-static.

From a JLS perspective, the exact behaviour of how reflection should work is not specified, but in JLS 17.5.4:

Normally, a field that is final and static may not be modified.

One workaround is to remove the final modifier through reflection.