Logging
Libraries that log the behavior of an application.
OpenTracing Toolbox180
Collection of libraries that build on top of OpenTracing and provide extensions and plugins to existing instrumentations.
Echopraxia54
API designed around structured logging, rich context, and conditional logging. There are Logback and Log4J2 implementations, but Echopraxia's API is completely dependency-free, meaning it can be implemented with any logging API.