> For the complete documentation index, see [llms.txt](https://xiaoyang-liu.gitbook.io/programming-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://xiaoyang-liu.gitbook.io/programming-notes/software-engineering/refactoring/code-smells/other-smells.md).

# Other Smells

Below are the smells which don’t fall into any broad category.

## Incomplete Library Class

Sooner or later, libraries stop meeting user needs. The only solution to the problem—changing the library—is often impossible since the library is read-only.

### Treatment

To introduce a few methods to a library class, use Introduce Foreign Method.

For big changes in a class library, use Introduce Local Extension.