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jacoco

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jacoco
:microscope: Java Code Coverage Library

Java · 4603 stars
example-jacoco-kotlin-compose

Kotlin · 2 stars

Beginner friendly Everything

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Update KotlinWhenFilter for Kotlin 2.5.0 Open

language: Kotlin type: enhancement

jacoco/jacoco#2216 · 1 assignee · Opened Jul 29, 2026
After upgrading kotlin 2.3.21 -> 2.4.10, compose branch coverage drop down Open

type: bug :bug:

jacoco/jacoco#2210 · 1 assignee · Opened Jul 20, 2026
Loading the agent during AOT training causes skipping of all classes with reason "From ClassFileLoadHook" Open

type: bug :bug:

Difficulty 5/5 Over a week Newbie friendliness 38/100

jacoco/jacoco#2206 · Opened Jul 10, 2026
exclude specified code blocks Open

type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

jacoco/jacoco#2204 · Opened Jul 3, 2026
Boundary-value coverage: flag numeric comparisons whose boundary (left == right) is never tested Open

type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

jacoco/jacoco#2190 · Opened Jun 25, 2026
Add support for Java 28 preview feature: Value Classes and Objects (JEP 401) Open

component: core language: Java type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

jacoco/jacoco#2164 · Opened Jun 10, 2026
Java 28 support Open

component: core type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 45/100

jacoco/jacoco#2163 · Opened Jun 10, 2026
Spring AOT issue - Class mismatch Open

reproducer required

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jacoco/jacoco#2154 · 1 comment · Opened Jun 4, 2026
CLI command `execinfo` should use `BufferedInputStream` to read execution data file Open

component: cli type: enhancement

jacoco/jacoco#2153 · 1 assignee · Opened Jun 4, 2026
Fix warning Open

component: build

Difficulty 3/5 1-2 days Newbie friendliness 45/100

jacoco/jacoco#2147 · 1 comment · 1 reaction · Opened Jun 1, 2026
Add validation test for ranges in Kotlin `when` Open

component: test language: Kotlin

Difficulty 3/5 1-2 days Newbie friendliness 52/100

jacoco/jacoco#2140 · Opened May 29, 2026
XML and CSV reports should be written to FileOutputStream via BufferedOutputStream Open

component: ant component: cli component: maven

jacoco/jacoco#2095 · 1 comment · 1 assignee · Opened Apr 1, 2026
Compose coverage still incorrect with JaCoCo 0.8.14 Open

language: Kotlin reproducer required

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jacoco/jacoco#2078 · 3 comments · Opened Mar 18, 2026
Add validation test for Kotlin empty `when` with side effect in subject Open

component: test language: Kotlin

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

jacoco/jacoco#2039 · Opened Jan 20, 2026
Fix project url in POMs Open

component: documentation

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

jacoco/jacoco#2036 · 1 comment · Opened Jan 15, 2026
Improve FinallyFilter Open

component: core.filters language: Java

Difficulty 3/5 1-2 days Newbie friendliness 45/100

jacoco/jacoco#2020 · Opened Dec 9, 2025
Record deconstruction in exhaustive switch not fully supported Open

language: Java type: bug :bug:

jacoco/jacoco#2000 · 2 reactions · 1 assignee · Opened Nov 20, 2025
Multiple patterns in exhaustive switch not seen as totally covered Open

language: Java type: bug :bug:

jacoco/jacoco#1999 · 1 reaction · 1 assignee · Opened Nov 19, 2025
Support browser "dark" mode in reports Open

type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 55/100

jacoco/jacoco#1990 · 3 reactions · Opened Nov 6, 2025
Exclude inherited annotation with "Generated" in name Open

type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jacoco/jacoco#1988 · 1 comment · Opened Nov 5, 2025
Add property to jacoco-maven-plugin to specify report header Open

type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 42/100

jacoco/jacoco#1983 · 1 comment · Opened Oct 26, 2025
KotlinSerializableFilter should filter out `serializer` method in parameterized types Open

component: core.filters language: Kotlin

jacoco/jacoco#1972 · 1 assignee · Opened Oct 10, 2025
@Preview composable excluded only when not wrapped in themed @Composable Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jacoco/example-jacoco-kotlin-compose#82 · Opened Oct 10, 2025
Clarify semantics of RemoteControlWriter.read() in JavaDoc Open

component: documentation type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

jacoco/jacoco#1937 · 10 comments · Opened Aug 20, 2025
Make check goal rules configurable so that warnings can be logged Open

type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 42/100

jacoco/jacoco#1928 · 4 comments · Opened Aug 4, 2025
Update validation tests for Kotlin indy `when` expression Open

component: test language: Kotlin

jacoco/jacoco#1923 · 1 assignee · Opened Jul 23, 2025
Incorrect code coverage for Kotlin inline functions even when running with jacococli Open

type: bug :bug:

Difficulty 4/5 3-5 days Newbie friendliness 32/100

jacoco/jacoco#1922 · Opened Jul 22, 2025
Allow module specific includes/excludes in jacoco-maven-plugin:report-aggregate Open

type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

jacoco/jacoco#1920 · Opened Jul 17, 2025
org.jacoco.examples should not be licensed under EPL-2.0 Open

component: documentation type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

jacoco/jacoco#1919 · 4 comments · 2 reactions · Opened Jul 15, 2025
Korean Unicode Support for Class Names in HTML Reports Open

component: report type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jacoco/jacoco#1918 · 13 comments · Opened Jul 15, 2025
Consider releasing 1.0.0: jacoco is mature and good enough Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

jacoco/jacoco#1887 · 2 comments · 3 reactions · Opened May 27, 2025
Add validation test for Kotlin `inline` function with default arguments Open

component: test language: Kotlin

Difficulty 3/5 1-2 days Newbie friendliness 25/100

jacoco/jacoco#1879 · Opened Apr 14, 2025
Add validation tests for corner cases of Kotlin `when` with `String` subject Open

component: test language: Kotlin

jacoco/jacoco#1878 · 3 comments · 1 assignee · Opened Apr 10, 2025
Add validation test for Kotlin `suspend` functions with `public`, `protected`, `internal`, `private` and `open` modifiers Open

component: test language: Kotlin

Difficulty 3/5 1-2 days Newbie friendliness 25/100

jacoco/jacoco#1874 · Opened Apr 8, 2025
Coverage report is not correct for Kotlin inline function and inline function with reified parameter in 0.8.13 Open

language: Kotlin type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jacoco/jacoco#1873 · 1 comment · 2 reactions · Opened Apr 8, 2025
Offline instrumented Kotlin inline functions cause Kotlin compiler to throw exception when referenced on the classpath Open

type: bug :bug:

Difficulty 4/5 3-5 days Newbie friendliness 42/100

jacoco/jacoco#1856 · 1 comment · 2 reactions · Opened Mar 9, 2025
Do not filter-out `@JvmSynthetic` classes in Kotlin Open

component: core.filters language: Kotlin

Difficulty 3/5 1-2 days Newbie friendliness 45/100

jacoco/jacoco#1846 · Opened Jan 27, 2025
Add validation test for `main` without arguments in Kotlin Open

component: test language: Kotlin

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jacoco/jacoco#1844 · Opened Jan 27, 2025
Do not filter-out `@JvmMultifileClass` in Kotlin Open

component: core.filters language: Kotlin

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jacoco/jacoco#1843 · Opened Jan 22, 2025
Investigate disappearance of SMAP in Kotlin 2.0 Open

language: Kotlin

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jacoco/jacoco#1840 · 3 comments · Opened Jan 17, 2025
JaCoCo 0.8.12 crashes when running tests that pre-interrupt the thread Open

type: bug :bug:

Difficulty 4/5 3-5 days Newbie friendliness 30/100

jacoco/jacoco#1836 · Opened Jan 11, 2025
Adjust logic to emit mojo documentation Open

component: build type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 42/100

jacoco/jacoco#1828 · Opened Dec 21, 2024
Please exclude inner classes of classes with @*Generated* annotation from coverage report Open

type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jacoco/jacoco#1815 · 2 comments · Opened Dec 12, 2024
clinit for empty object should be tracked in Kotlin Open

language: Kotlin type: bug :bug:

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jacoco/jacoco#1754 · Opened Oct 16, 2024
Default constructor of value class is not tracked in Kotlin Open

language: Kotlin type: bug :bug:

Difficulty 4/5 3-5 days Newbie friendliness 42/100

jacoco/jacoco#1753 · Opened Oct 16, 2024
suspend inline function is not covered in Kotlin Open

component: core.filters language: Kotlin type: bug :bug:

jacoco/jacoco#1751 · 1 reaction · 1 assignee · Opened Oct 16, 2024
When expression is not covered for an enum with single element in Kotlin Open

component: core.filters language: Kotlin type: bug :bug:

jacoco/jacoco#1748 · 1 assignee · Opened Oct 15, 2024
When expression is not covered for the logical type in Kotlin Open

component: core.filters language: Kotlin type: bug :bug:

jacoco/jacoco#1747 · 1 assignee · Opened Oct 15, 2024
Default constructor for sealed class is not tracked in Kotlin Open

component: core.filters language: Kotlin type: bug :bug:

jacoco/jacoco#1746 · 1 assignee · Opened Oct 15, 2024
new maven goal, which aggregates coverage reports in the modules to be tested Open

type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

jacoco/jacoco#1731 · 3 comments · 2 reactions · Opened Sep 27, 2024

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