Is it bad practice to have my getter method change the stored value?

Question

Is it bad practice to change my getter method like version 2 in my class.

Version 1:

 public String getMyValue(){
     return this.myValue
 }
         


        

Answer 1

absolutely yes, it's a bad pratice.

Imagine you communicate accross network with a third party (remoting, COM, ...), this will increase the round-trip and then hit application performance.