@startuml start repeat if (Entry in ObjectMap for ObjectId?) then (yes) if (Resource exists in entry?) then (yes) ->//return resource//; stop else (no) while (Lock is released?) is (no) endwhile (yes) endif else (no) :Create lock; :Create entry in ObjectMap with lock; :Acquire lock; :Create resource; :Add resource to entry in ObjectMap; :Release lock; ->//return resource//; stop endif @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art