protected function getShortCommandIdentifiers(): array
    {
        if ($this->shortCommandIdentifiers === null) {
            $this->shortCommandIdentifiers = [];
            $commandsByCommandName = [];
            /** @var Command $availableCommand */
            foreach ($this->getAvailableCommands() as $availableCommand) {
                list($packageKey, $controllerName, $commandName) = explode(':', $availableCommand->getCommandIdentifier());
                if (!isset($commandsByCommandName[$commandName])) {
                    $commandsByCommandName[$commandName] = [];
                }
                if (!isset($commandsByCommandName[$commandName][$controllerName])) {
                    $commandsByCommandName[$commandName][$controllerName] = [];
                }
                $commandsByCommandName[$commandName][$controllerName][] = $packageKey;
            }
            foreach ($this->getAvailableCommands() as $availableCommand) {
                list($packageKey, $controllerName, $commandName) = explode(':', $availableCommand->getCommandIdentifier());
                if (count($commandsByCommandName[$commandName][$controllerName]) > 1 || $this->bootstrap->isCompiletimeCommand($availableCommand->getCommandIdentifier())) {
                    $packageKeyParts = array_reverse(explode('.', $packageKey));
                    for ($i = 1; $i <= count($packageKeyParts); $i++) {
                        $shortCommandIdentifier = implode('.', array_slice($packageKeyParts, 0, $i)) . ':' . $controllerName . ':' . $commandName;
                        try {
                            $this->getCommandByIdentifier($shortCommandIdentifier);
                            $this->shortCommandIdentifiers[$availableCommand->getCommandIdentifier()] = $shortCommandIdentifier;
                            break;
                        } catch (CommandException $exception) {
                        }
                    }
                } else {
                    $this->shortCommandIdentifiers[$availableCommand->getCommandIdentifier()] = sprintf('%s:%s', $controllerName, $commandName);
                }
            }
        }

        return $this->shortCommandIdentifiers;
    }