jOOQ is a type-safe SQL DSL and code generator for Java.
My old contribution fixed insertion into PostgreSQL string arrays when the strings contained " or \ characters.
The nice bit: the jOOQ blog later used the pull request as an example of how to provide a good pull request. The post calls it an “awesome pull request” and points out the shape of it: small refactoring steps, a regression test, then the actual fix.
Small bug. Real bug. Clean contribution.
Pull request · jOOQ blog: How to provide a good pull request