How to merge two complex objects in java

Question

I have two java objects and I want to merge them into single object. Problem is the two objects does not contain plain primitive type properties(fields) they contain complex

Answer 1

try to use class.getFields

    Field[] fields = YourClass.getFields();
    for (Field field : fields) {
         // get value
         YourObject value = field.get(objectInstance);
         // check the values are different, then update 
         field.set(objetInstance, value);    
    }