johnreedlol/scala-trace-debug   4.5.0

Macro based print debugging. Locates log statements in your IDE.

sirthias/macrolizer   0.6.2

Tiny Scala library for targeted macro debugging by logging properly formatted expansions at compile time

gchudnov/bscript   1.3.5

BScript - AST Evaluation & Debugging

pravoru/gatling-junitrunner   0.1

JUnit wrapper around gatling simulations

ensime/scala-debugger

Scala libraries and tooling utilizing the Java Debugger Interface.