JaCoCo and EclEmma Users

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Welcome to the EclEmma and JaCoCo user's group!

To resolve issues quickly please check our extensive documentation first:

These links contain answers to most questions that have been asked before.

If you're posting new issues to this list please help us to understand your problem or idea:

Clearly state what you want to do and what the expected outcome is.
Provide detailed information about your exact setup and product versions in use.
In case you encounter an error include the full error message, stack trace or log file.

What will not work on this mailing list:

We cannot provide support for other tools JaCoCo has been integrated with. Please check with the respective tool providers.
We will not do your homework or assignment.
All support is provided by volunteers in their spare time for free. Adding URGENT, ASAP etc. to your requests is no motivation for them.

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Jul 23

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Jul 23

Jul 16

Code coverage reporting 1 of 2 branches missed

I've pushed a new, bit simplified version of the code. The error is now on line 11. On Monday,

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Code coverage reporting 1 of 2 branches missed

I've pushed a new, bit simplified version of the code. The error is now on line 11. On Monday,

Jul 16

Diksha Gupta, Marc Hoffmann2

Jul 14

Coverage is 0 when i updated gradle version 7.4.1 to 8.7

Dear Diksha, please understand that the JaCoCo Grade integration is not implemented by us. Please

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Coverage is 0 when i updated gradle version 7.4.1 to 8.7

Dear Diksha, please understand that the JaCoCo Grade integration is not implemented by us. Please

Jul 14

Arnav Gupta, Marc Hoffmann3

Jun 25

Unanticipated results for Jacoco build.

Hey, We are using following JaCoCo plugin integrated with our kotlin application. Plugin details :

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Unanticipated results for Jacoco build.

Hey, We are using following JaCoCo plugin integrated with our kotlin application. Plugin details :

Jun 25

RK, Marc Hoffmann2

Jun 18

Regarding Aspect with jacoco

Hi, JaCoCo will show what parts of the original bytecode are executed. If the inspected bytecode has

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Regarding Aspect with jacoco

Hi, JaCoCo will show what parts of the original bytecode are executed. If the inspected bytecode has

Jun 18

Jens Kaiser, Marc Hoffmann2

Jun 14

No coverage for some default methods

Dear Jens, this is indeed a known limitation. Not because of the default method, but because of the

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No coverage for some default methods

Dear Jens, this is indeed a known limitation. Not because of the default method, but because of the

Jun 14

Jun 12

Code coverage with manual testing on android studio with Jacoco and Java Agent

Hi everyone, I'm trying to implement Jacoco into my android studio app and get manual testing

unread,

Code coverage with manual testing on android studio with Jacoco and Java Agent

Hi everyone, I'm trying to implement Jacoco into my android studio app and get manual testing

Jun 12

Brian Reiss, Evgeny Mandrikov3

Jun 11

EclEmma not working in version 4.31.0

Thank you so much. For some reason my Eclipse marketplace did not give me the option to upgrade from

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EclEmma not working in version 4.31.0

Thank you so much. For some reason my Eclipse marketplace did not give me the option to upgrade from

Jun 11

MIDHUN S, Sindhu Chowdary2

Jun 11

JACOCO Code coverage in AOSP

Hi Midhun Did u able to find any solution for this? Best Regards, sindhu On Friday, March 10, 2023 at

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JACOCO Code coverage in AOSP

Hi Midhun Did u able to find any solution for this? Best Regards, sindhu On Friday, March 10, 2023 at

Jun 11

Sindhu Chowdary

Jun 11

Not able to integrate JaCoCo in AOSP soong system

Hi All, I am trying to integrate JaCoCo into Aosp Build system, tried this steps in https://android.

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Not able to integrate JaCoCo in AOSP soong system

Hi All, I am trying to integrate JaCoCo into Aosp Build system, tried this steps in https://android.

Jun 11

Ashish Ranjan Sinha, Marc Hoffmann9

Jun 7

Jacoco showing 0% for already instrumented classes in Multi Module Architecture.

Hi Marc- I thoroughly checked and found the class- Accumulator.java is not picked by the Jacoco when

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Jacoco showing 0% for already instrumented classes in Multi Module Architecture.

Hi Marc- I thoroughly checked and found the class- Accumulator.java is not picked by the Jacoco when

Jun 7

Monisha G, … Ashish Ranjan Sinha8

Jun 1

Jacoco shows 0% code coverage on RHEL 8.7 (Ootpa)

Hi Monisha G, What was then used for includes option ? Regards, Ashish On Thursday, April 20, 2023 at

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Jacoco shows 0% code coverage on RHEL 8.7 (Ootpa)

Hi Monisha G, What was then used for includes option ? Regards, Ashish On Thursday, April 20, 2023 at

Jun 1

Andreas Höhmann2

May 31

EclEmma for Eclipse not working with Eclipse 4.32.0

3.1.9 is working fine! :D Andreas Höhmann schrieb am Freitag, 31. Mai 2024 um 07:38:55 UTC+2: Hello,

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EclEmma for Eclipse not working with Eclipse 4.32.0

3.1.9 is working fine! :D Andreas Höhmann schrieb am Freitag, 31. Mai 2024 um 07:38:55 UTC+2: Hello,

May 31

Diego Flávia, Marc Hoffmann4

May 25

Runtime custom coverage filter

Hi Diego, JaCoCo records all executions. If multiple users use the API at the same time, there is no

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Runtime custom coverage filter

Hi Diego, JaCoCo records all executions. If multiple users use the API at the same time, there is no

May 25

May 17

Unable to generate Jacoco report using gradle task

Hi All, I want to generate jacoco html report from an existing coverage.ec file for an Android

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Unable to generate Jacoco report using gradle task

Hi All, I want to generate jacoco html report from an existing coverage.ec file for an Android

May 17

Nicolas Baumann

May 11

How can I get jacoco coverage on methods called by reflection?

Hello I'm using jacoco version 0.8.12. I'm using a vendor library which calls the code that I

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How can I get jacoco coverage on methods called by reflection?

Hello I'm using jacoco version 0.8.12. I'm using a vendor library which calls the code that I

May 11

Kush Mishra, Marc Hoffmann2

May 6

API run code coverage.

Hi Kush, sure JaCoCo can collect execution data for any Java application. To collect coverage data of

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API run code coverage.

Hi Kush, sure JaCoCo can collect execution data for any Java application. To collect coverage data of

May 6

Omar Al-Haj Qasem

Apr 29

Keep modules when using Jacoco CLI merge utility

Hi; I'm using Jacoco cli to merge multiple modules after generating all Unit Tests jacoco.exec

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Keep modules when using Jacoco CLI merge utility

Hi; I'm using Jacoco cli to merge multiple modules after generating all Unit Tests jacoco.exec

Apr 29

Apr 23

Can't get coverage data in OpenJDK 17

We have an app that creates several java processes. For each one we add the javaagent to the java

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Can't get coverage data in OpenJDK 17

We have an app that creates several java processes. For each one we add the javaagent to the java

Apr 23

Xavier León Civera, … Suchi Bansal8

Apr 16

Jacoco Agent (0.8.8) breaks with OpenJDK 17

which version to use with java 17? On Friday, August 19, 2022 at 2:43:25 PM UTC+5:30 Marc Hoffmann

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Jacoco Agent (0.8.8) breaks with OpenJDK 17

which version to use with java 17? On Friday, August 19, 2022 at 2:43:25 PM UTC+5:30 Marc Hoffmann

Apr 16

Momina Babar, Marc Hoffmann2

Apr 5

Jacoco Excludes Configuration not working

Hi, the excludes patterns refer to class file names, not sources. Please try <excludes> <

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Jacoco Excludes Configuration not working

Hi, the excludes patterns refer to class file names, not sources. Please try <excludes> <

Apr 5

Kaushal Senevirathne, Marc Hoffmann3

Mar 21

I'm using Java 17 and sbt 1.9.8 and Scala 2.13 : report coverage is zero for all categories

Hi marc noted On Thursday, March 21, 2024 at 2:27:24 PM UTC+5:30 Marc R. Hoffmann wrote: Hi Kaushal,

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I'm using Java 17 and sbt 1.9.8 and Scala 2.13 : report coverage is zero for all categories

Hi marc noted On Thursday, March 21, 2024 at 2:27:24 PM UTC+5:30 Marc R. Hoffmann wrote: Hi Kaushal,

Mar 21

Farooque Azam, varun desu4

Feb 25

Installation Error on Obeo 11.8 (on 6 Nov)

I get the exact same error on Myeclipse 2022.1 SDC Version. Please help On Monday, November 6, 2023

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Installation Error on Obeo 11.8 (on 6 Nov)

I get the exact same error on Myeclipse 2022.1 SDC Version. Please help On Monday, November 6, 2023

Feb 25

Feb 21

wanna get specific info from the Branch

hi， I want to get the start line、 end line about each branch, I have done lots of test , but it didn

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wanna get specific info from the Branch

hi， I want to get the start line、 end line about each branch, I have done lots of test , but it didn

Feb 21

Jan 29

Unable to generate Jacoco report with JDK17

Ok, nevermind, I switched to kotlinx-kover and dropped all of my hand-rolled code. There I don't

unread,

Unable to generate Jacoco report with JDK17

Ok, nevermind, I switched to kotlinx-kover and dropped all of my hand-rolled code. There I don't

Jan 29

Chathumal Sangeeth, 金丁4

Jan 29

Jacoco maven config is not working

Hi 金丁 check my repo https://github.com/cozyloon/JaCoCo_Code-Coverage. On Wednesday, January 17, 2024

unread,

Jacoco maven config is not working

Hi 金丁 check my repo https://github.com/cozyloon/JaCoCo_Code-Coverage. On Wednesday, January 17, 2024

Jan 29

RK, Marc Hoffmann2

Jan 25

Regarding limitation in jacoco tool

Hi, explicitly thrown Exceptions like throw new Exception(); should be marked as covered. We have an

unread,

Regarding limitation in jacoco tool

Hi, explicitly thrown Exceptions like throw new Exception(); should be marked as covered. We have an

Jan 25

Jan 19

Jacoco merge/generate/publish: Execution data for class does not match

Closing this. Cross posting if it helps you (new reader facing problem) unblock for your case. Short:

unread,

Jacoco merge/generate/publish: Execution data for class does not match

Closing this. Cross posting if it helps you (new reader facing problem) unblock for your case. Short:

Jan 19

Elizabeth Sirkova, … Abhishek Singh6

Jan 18

Question about Jacoco and Maven incremental builds

Hi Guys, recently I started working on integrating Maven Build Cache extension into our Multi Module

unread,

Question about Jacoco and Maven incremental builds

Hi Guys, recently I started working on integrating Maven Build Cache extension into our Multi Module

Jan 18

Magali Kain, … Ankit Srivastava5

Jan 17

Unit tests using JUnit 4 are not being accounted for, whereas those written in JUnit 5 are

Hi Magali, Can you pls share your code to understand problem better ? Thanks Ankit On Wednesday,

unread,

Unit tests using JUnit 4 are not being accounted for, whereas those written in JUnit 5 are

Hi Magali, Can you pls share your code to understand problem better ? Thanks Ankit On Wednesday,

Jan 17

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