Code changed in jenkins
User: Mark Waite
Path:
pom.xml
http://jenkins-ci.org/commit/git-client-plugin/31e556b29cd179b7233495bbcedfee4a0bc82e48
Log:
Revert "Update jacoco dependency to 0.7.5.201505241946"

JaCoCo 0.7.5 shows no lines covered when displayed by Jenkins JaCoCo
plugin 1.0.19. Since Jenkins JaCoCo plugin 1.0.19 is based on JaCoCo
0.7.4 rather than 0.7.5, that may be expected.

The JaCoCo report in target/site/jacoco/index.html appears correct and
complete for JaCoCo 0.7.5, but the missing presentation in Jenkins means
this update needs to wait until the JaCoCo plugin is updated to support
JaCoCo 0.7.5.

Submitted JENKINS-28652 documenting the JaCoCo plugin problem

This reverts commit aa7e532a9fdd947abe131efc006c7119ed430a41.

Job definition I used to show the issue is attached as JENKINS-28652-JaCoCo-0.7.5-displays-no-coverage.xml

PR https://github.com/jenkinsci/jacoco-plugin/pull/55 is also blocked by this.

Hi,

What's the status for closing this one ?

Kind regards
Claus Nielsen

Unfortunately simply upgrading to JaCoCo 0.7.5 would break all installations still using 0.7.4, there was some discussion about switching to reading the data from the XML report in the plugin, but there seems to be a bit less information available there, so unless someone steps up to invest the time to implement this, it is unlikely to happen anytime soon, sorry.

jacoco version using 0.x, this means this sort of compatibility breakage is expected

Fixed by JaCoCo-Plugin 2.0.0 by simply forcing projects to upgrade to 0.7.5 as no-one could come up with the necessary changes to support both versions in parallel or switch to an XML-based report.

Verified closed with plugin version 2.0.0

I have upgraded Jenkins to use latest version 2.0.1 and started getting 0% coverage even thought I can see coverage.ec file have classes that have been covered. Also even though I am using "0.7.5.201505241946" in my android build.gradle Using Jenkins 1.628. Surprised that I dit not have a problem with build.gradle using "0.7.5.201505241946" with Jenkins Plugin 1.0.19
Can someone please help me. I have to downgrade my machine to plugin 1.0.19 for now. Which is working totally fine.

Seeing similar issue here:

Jacoco: 2.0.0
Jenkins: 1.642.1
OS: Ubuntu 14.04

While reading execution data-file: /jenkins/job/105/jacoco/execFiles/exec6/jacoco.exec
java.io.IOException: Incompatible version 1006.
at org.jacoco.core.data.ExecutionDataReader.readHeader(ExecutionDataReader.java:127)
at org.jacoco.core.data.ExecutionDataReader.readBlock(ExecutionDataReader.java:107)
at org.jacoco.core.data.ExecutionDataReader.read(ExecutionDataReader.java:87)
at hudson.plugins.jacoco.ExecutionFileLoader.loadExecutionData(ExecutionFileLoader.java:92)
at hudson.plugins.jacoco.ExecutionFileLoader.loadBundleCoverage(ExecutionFileLoader.java:132)
at hudson.plugins.jacoco.JacocoReportDir.parse(JacocoReportDir.java:102)
at hudson.plugins.jacoco.JacocoBuildAction.getResult(JacocoBuildAction.java:227)
at hudson.plugins.jacoco.JacocoBuildAction.getCoverageRatios(JacocoBuildAction.java:247)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)

This indicates that you are still using JaCoCo 0.7 4 or earlier, the plugin version 2.0.0 requires 0.7.5 or newer to work.

Confirmed that Jacoco plugin version: 2.0.1 worked with the 0.7.6 version of jacocoagent.jar & jacocoant.jar. Thanks centic

Setting to resolved based on latest comments, if you still see this, make sure you use JaCoCo >= 0.7.5 in your project and JaCoCo plugin >= 2.0.1 and if that still does not work, please create a new issue as it is likely not related to this problem.

Thanks,
On my side it looks like using the Mvn plugin at 0.7.5 fixes my issue

I am also facing the same issue and i am not able to fix that

[JaCoCo plugin] Collecting JaCoCo coverage data...
[JaCoCo plugin] */.ec;/app/build/intermediates/classes/debug/com/calci/com/calculator1;*/app/src/main/java; locations are configured
[JaCoCo plugin] Number of found exec files for pattern */*.ec: 1
[JaCoCo plugin] Saving matched execfiles: C:\Users\310247986\AndroidStudioProjects\Calculator1\app\build\outputs\code-coverage\connected\coverage.ec
[JaCoCo plugin] Saving matched class directories for class-pattern: **/app/build/intermediates/classes/debug/com/calci/com/calculator1: C:\Users\310247986\AndroidStudioProjects\Calculator1\app\build\intermediates\classes\debug\com\calci\com\calculator1
[JaCoCo plugin] Saving matched source directories for source-pattern: **/app/src/main/java: C:\Users\310247986\AndroidStudioProjects\Calculator1\app\src\main\java
[JaCoCo plugin] Loading inclusions files..
[JaCoCo plugin] inclusions: [**/*.class]
[JaCoCo plugin] exclusions: []
[JaCoCo plugin] Thresholds: JacocoHealthReportThresholds [minClass=0, maxClass=0, minMethod=0, maxMethod=0, minLine=0, maxLine=0, minBranch=0, maxBranch=0, minInstruction=0, maxInstruction=0, minComplexity=0, maxComplexity=0]
[JaCoCo plugin] Publishing the results..
[JaCoCo plugin] Loading packages..
[JaCoCo plugin] Done.
[JaCoCo plugin] Overall coverage: class: 0, method: 0, line: 0, branch: 0, instruction: 0
Finished: SUCCESS

in my case .ec file is generated but it is showing 0% code coverage though XML file shows 17% of code coverage

I am also facing the same issue and i am not able to fix that. Covrage is showing 0 but  file in this location`java/target/site/jacoco/index.html` i am getting some number 

 
[JaCoCo plugin] Collecting JaCoCo coverage data...
[JaCoCo plugin] */SellerServicecode/java/target/jacoco.exec;/SellerServicecode/java/target/classes/com/myntra/seller/manager;*/SellerServicecode/java/src/main/java/com/myntra/seller/manager; locations are configured
[JaCoCo plugin] Number of found exec files for pattern **/SellerServicecode/java/target/jacoco.exec: 1
[JaCoCo plugin] Saving matched execfiles: /var/lib/jenkins/workspace/sellerService_Cov/SellerServicecode/java/target/jacoco.exec
[JaCoCo plugin] Saving matched class directories for class-pattern: **/SellerServicecode/java/target/classes/com/myntra/seller/manager:
[JaCoCo plugin] - /var/lib/jenkins/workspace/sellerService_Cov/SellerServicecode/java/target/classes/com/myntra/seller/manager 33 files
[JaCoCo plugin] Saving matched source directories for source-pattern: **/SellerServicecode/java/src/main/java/com/myntra/seller/manager:
[JaCoCo plugin] - /var/lib/jenkins/workspace/sellerService_Cov/SellerServicecode/java/src/main/java/com/myntra/seller/manager 30 files
[JaCoCo plugin] Loading inclusions files..
[JaCoCo plugin] inclusions: []
[JaCoCo plugin] exclusions: []
[JaCoCo plugin] Thresholds: JacocoHealthReportThresholds [minClass=0, maxClass=0, minMethod=0, maxMethod=0, minLine=0, maxLine=0, minBranch=0, maxBranch=0, minInstruction=0, maxInstruction=0, minComplexity=0, maxComplexity=0]
[JaCoCo plugin] Publishing the results..
[JaCoCo plugin] Loading packages..
[JaCoCo plugin] Done.
[JaCoCo plugin] Overall coverage: class: 0, method: 0, line: 0, branch: 0, instruction: 0
Finished: UNSTABLE
 

manishkumar087 questions posted to closed bug reports are seen by very few people. It is much better to ask questions in the Jenkins users mailing list or one of the Jenkins chat channels.

If you have a series of steps which another person can use to duplicate the problem, then you can open a bug report. Code coverage reporting as described in this bug report is working for me on my Jenkins installations in multiple projects.