title: Java - Referring static method using that class instance
body: <p>What will exactly happen when using static method using that class instance?
  in build  level and run time.</p>
  
  <p>Thanks in advance.</p>
  
  <p>Update:
  There are two classes, class one has a method, and the second one uses that method and after some time that method got changed to static. while running, I get IncompatibleClassChangeError.</p>