JaCoCo

Spec sheet

Purpose

JaCoCo is a code coverage library for Java and Java VM based environments.Read 4 Oct 2026 · jacoco.org

Integrations

The integration matrix lists tools including Gradle, Eclipse, IntelliJ IDEA, Jenkins, SonarQube, and TeamCity.Read 4 Oct 2026 · jacoco.org

Security

The agent’s TCP connections and JMX interface have no authentication, and the documentation warns that exposing them to untrusted sources may reveal application information or permit denial-of-service attacks.Read 4 Oct 2026 · jacoco.org

Support

The project directs users to its public JaCoCo and EclEmma user group for feedback and questions.Read 4 Oct 2026 · jacoco.org

License

The library and its included documentation are made available under the Eclipse Public License 2.0, except where otherwise indicated.Read 4 Oct 2026 · jacoco.org

Build tools

JaCoCo provides Ant tasks and a Maven plug-in for collecting execution data and creating reports.Read 4 Oct 2026 · jacoco.org

Coverage metrics

It analyzes instruction, branch, line, method, type, and cyclomatic complexity coverage.Read 4 Oct 2026 · jacoco.org

Instrumentation

Its Java agent instruments class files on the fly as they are loaded, independently of the application framework.Read 4 Oct 2026 · jacoco.org

Java support

JaCoCo officially supports Java class files from version 1.0 to 27 and experimentally supports version 28; its runtime and tools require Java 1.5 or higher.Read 4 Oct 2026 · jacoco.org

Release schedule

The project says it is maintained by volunteers in their free time and does not commit to particular release dates.Read 4 Oct 2026 · jacoco.org

Report requirement

Line coverage and source highlighting require class files compiled with debug information containing line numbers.Read 4 Oct 2026 · jacoco.org

Reports

It can create coverage reports in HTML, XML, and CSV formats.Read 4 Oct 2026 · jacoco.org

Plans and prices

Every JaCoCo plan and price →

Where Specifiction places it

• Code Coverage Tools#7 of 107.3
• Test Coverage Tools#22 of 277.3