java - Guess at runtime fields used in equals() -

What can be predicted on a programmatic runtime, which is used in an equivalent () method of an object whose I do not own myself? Especially when gates are not used by the equivalent () for the use of the field:

  class override eccles {string firstfilled; Integer seconds field = 0; @ Override Public Boolean Equivalent {if (other installation of override estals) {returnField.equals Return ((override avails) other) .lastField); } return false; }}   
 In this example, there is a way to find parallel () first uses the field and the last form (byte-code analysis, proxy, ...) at this time Is it implemented?   
 
 
 Diping a bytecoch will answer you, but there will be an easier and more logical way to do this. Ask the code owner to annotate your  par  method in any way, for example  @ ChecksForCencyOn (...) .  
 Is there any special reason to do this at runtime?