Jackalope\Transport\Jackrabbit\Client::checkForExistingNode PHP Method

    protected function checkForExistingNode($srcWorkspace, $srcAbsPath, $destAbsPath)
    {
        try {
            $existingNode = $this->getNode($destAbsPath);
        } catch (ItemNotFoundException $exception) {
            return;
        }
        if (empty($existingNode->{'jcr:uuid'})) {
            throw new ItemExistsException('A node already exists at the destination path');
        } else {
            $existingNodeUuid = $existingNode->{'jcr:uuid'};
            try {
                $correspondingPath = $this->getNodePathForIdentifier($existingNodeUuid, $srcWorkspace);
            } catch (ItemNotFoundException $exception) {
                $correspondingPath = null;
            }
            if ($correspondingPath != $srcAbsPath) {
                throw new ItemExistsException('A node already exists at the destination path that does not correspond to the source node');
            }
        }
    }