PVS-Studio warning V595 for ACE

ACE_Reactor *
ACE_Event_Handler::reactor (void) const
{
  ACE_TRACE ("ACE_Event_Handler::reactor");
  return this->reactor_;
}

template <class SVC_HANDLER, ACE_PEER_ACCEPTOR_1> int
ACE_Oneshot_Acceptor<SVC_HANDLER, ACE_PEER_ACCEPTOR_2>::
  handle_input (ACE_HANDLE)
{
  ...
  bool const reset_new_handle =
    this->reactor ()->uses_event_associations ();

  if (this->reactor ())
  ...
}

This suspicious code was found in ACE project by PVS-Studio static code analyzer.
Warning message is:
V595 The 'this->reactor()' pointer was utilized before it was verified against nullptr. Check lines: 1139, 1145. Gateway acceptor.cpp 1139

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/