code: @Override
      public void visitCode(Code obj) {
          stack.resetForMethodEntry(this);
          exemptExecutors.clear();
  
          if (!hangingFieldCandidates.isEmpty()) {
              isInitializer = (Values.STATIC_INITIALIZER.equals(methodName) || Values.CONSTRUCTOR.equals(methodName));
              super.visitCode(obj);
          }
      }
docs: implements the visitor to reset the opcode stack
  
  @param obj
  the context object of the currently parsed code block