pool::ITechnologySpecificAttributes::Exception Node1 pool::ITechnologySpecific Attributes::Exception + Exception() + ~Exception() Node2 pool::PersistencySvcException + PersistencySvcException() Node2->Node1 Node3 pool::Exception + Exception() + ~Exception() + what() Node3->Node2 Node4 std::exception Node4->Node3 Node5 std::string Node5->Node3 -m_message Node6 std::basic_string< char > Node6->Node5