code: @Override
      public void visitCode(Code obj) {
          Method m = getMethod();
          String name = m.getName();
          String signature = m.getSignature();
  
          if ("equals".equals(name) && SignatureBuilder.SIG_OBJECT_TO_BOOLEAN.equals(signature) && prescreen(m)) {
              stack.resetForMethodEntry(this);
              super.visitCode(obj);
          }
      }
docs: implements the visitor to see if this method is equals(Object o)
  
  @param obj
  the context object of the currently parsed code block