jacoco/jacoco
:microscope: Java Code Coverage Library observed · 2026-08-28
Health v2 · maintenance only
84/100
- Activity 99
- Release rhythm 55
- Longevity 100
Flags: no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 214.5
- age_days: 5169
- days_rel: 89
- days_push: 7
- n_releases_24m: 3
Adoption not part of the score
4601 stars · 1198 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
JaCoCo is a free Java code coverage library that measures and reports code coverage via bytecode instrumentation through a Java agent, with integrations for Maven, Ant, CLI, and Eclipse (EclEmma). It supports Java, Kotlin, and Groovy on the JVM.
Use cases
- measure test coverage of a Java project
- generate HTML/XML coverage reports from Maven builds
- enforce coverage thresholds in CI
- see which lines are covered while running tests in Eclipse
- instrument JVM apps for coverage via a Java agent
When to choose
- you need code coverage metrics for Java/Kotlin/Groovy on the JVM
- you use Maven, Ant, Gradle, or Eclipse and want standard coverage reporting
- you need coverage data for SonarQube or CI quality gates
When to avoid
- you need coverage for non-JVM languages
- you need runtime performance profiling rather than coverage
Facets
library · maturity stable
testing developer-tools testing developer-tools jvm cli code-coverage java-agent bytecode-instrumentation maven-plugin eclipse-plugin kotlin groovy jvm
4 sources
- readme: https://github.com/jacoco/jacoco · fetched 2026-08-28 · b211afe5e4b8
- homepage: https://www.jacoco.org/jacoco · fetched 2026-08-29 · eff9c8dd92c3
- site_page: https://www.jacoco.org/installation.html · fetched 2026-08-29 · 4a41c3ac6407
- site_page: http://www.jacoco.org/jacoco/trunk/doc · fetched 2026-08-29 · a7253f1fda69
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| jacoco/jacoco | main | 84 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem