Error handling is one of the harder aspects of software engineering, IMHO. For starters, those code paths are less tested than others. See this, for example:

Error handling is one of the harder aspects of software engineering, IMHO. For starters, those code paths are less tested than others. See this, for example: https://www.usenix.org/system/files/conference/osdi14/osdi14-paper-yuan.pdf https://www.usenix.org/system/files/conference/osdi14/osdi14...