Error while converting jacoco report to cobertura

[Pranav Bhatt]

Hi Team,

I am getting the following error while trying to convert a jacoco report to cobertura in azure devops pipeline:

2024-04-23T07:47:15: Error during reading report '/mnt/vss/_work/1/s/sources/dev/report/target/jacoco/jacoco.xml' (Size: 40.6MB): An item with the same key has already been added. Key: 39
2024-04-23T07:47:16: Writing report file '/mnt/vss/_work/1/a/publish/coverage/Cobertura.xml'
2024-04-23T07:47:16: Writing report file '/mnt/vss/_work/1/a/publish/coverage/index.html'
2024-04-23T07:47:16: Report generation took 3.4 seconds
##[debug]Exit code 0 received from tool '/usr/bin/dotnet'

I have the following task in my pipeline:

        - task: reportgenerator@5
          displayName: Jacoco Report Converter
          condition: always()
          continueOnError: true
          inputs:
            reports: '$(Build.SourcesDirectory)/sources/dev/report/target/jacoco/jacoco.xml'
            targetdir: '$(Build.SourcesDirectory)/publish/coverage'
            sourceDirs: '$(Build.SourcesDirectory)/sources/dev'
            reporttypes: 'HtmlInline_AzurePipelines;Cobertura'

I have a sample jacoco coverage file which I can send for further inspect if needed.

[Daniel Palme]

Could you please share your JaCoCo file?
You can send it privately via email: [e-mail]

[Pranav Bhatt]

@danielpalme sent the link to take a look at the jacoco file.

[Daniel Palme]

Problem here is that the class SurveyRequestDateHelper appears twice in the JaCoCo file.

If you update to the latest release 5.2.5, it will work with the duplicate class as well.

[Pranav Bhatt]

Thank you @danielpalme I will rename one of the files to check if it works and report back.

[Pranav Bhatt]

@danielpalme

• I was able to make it work by deleting the duplicate file, and after reading other issues I used PublishCodeCoverageResults@1 to generate the report. I am able to see the coverage in the Code Coverage Tab.
• However, when I click on the individual classes i see the following message: File 'SomeFile.java' does not exist (any more)., I inspected the jacoco index.html by downloading it on my localmachine and I am able to browse individual files from jacoco html. Is it because pathToSources is not setup properly ?
• I have uploaded some html screenshots for you to review, in the folder which I shared before.

[Daniel Palme]

When you are using PublishCodeCoverageResults@1 please read these instructions:
https://github.com/danielpalme/ReportGenerator/wiki/Integration#attention

By default the report gets regenerated by PublishCodeCoverageResults@1

[Pranav Bhatt]

I ran reportGenerator plugin first to convert the jacoco to cobertura
Task

        - task: reportgenerator@5
          displayName: Jacoco Report Converter
          condition: succeeded()
          continueOnError: true
          inputs:
            reports: '$(Build.SourcesDirectory)/sources/dev/awareai-test-coverage-report/target/jacoco/jacoco.xml'
            targetdir: '$(Build.ArtifactStagingDirectory)/publish/coverage'
            sourceDirs: '$(Build.SourcesDirectory)/sources/dev'
            reporttypes: 'HtmlInline_AzurePipelines;Cobertura'

Debug Log

##[debug]   -license:
/usr/bin/dotnet /mnt/vss/_work/_tasks/reportgenerator_be803a55-9253-4895-a525-be570d86f161/5.2.5/tools/net6.0/ReportGenerator.dll -reports:/mnt/vss/_work/1/s/sources/dev/awareai-test-coverage-report/target/jacoco/jacoco.xml -targetdir:/mnt/vss/_work/1/a/publish/coverage -reporttypes:HtmlInline_AzurePipelines;Cobertura -sourcedirs:/mnt/vss/_work/1/s/sources/dev -historydir: -plugins: -assemblyfilters:+* -classfilters:+* -filefilters:+* -verbosity:Info -title: -tag:20240425.5+MAN_4521932-reportgen_#18509423 -license:
##[debug]Agent environment resources - Disk: / Available 190916.00 MB out of 253873.00 MB, Memory: Used 14064.00 MB out of 32094.00 MB, CPU: Usage 2.53%

...
2024-04-25T09:26:16: File 'ActComponentValueExtensionDao.java' does not exist (any more). <<< files not present 
2024-04-25T09:26:16: File 'ActConversationDaoJpa.java' does not exist (any more).

>>> continues for all files <<<
...
2024-04-25T09:26:25: Writing report file '/mnt/vss/_work/1/a/publish/coverage/Cobertura.xml'
2024-04-25T09:26:26: Writing report file '/mnt/vss/_work/1/a/publish/coverage/index.html'
2024-04-25T09:26:26: Report generation took 15.3 seconds
##[debug]Exit code 0 received from tool '/usr/bin/dotnet'
##[debug]STDIO streams have closed for tool '/usr/bin/dotnet'

Publish Task

        - task: PublishCodeCoverageResults@1
          displayName: 'Publish code coverage'
          continueOnError: true
          condition: succeeded()
          inputs:
            summaryFileLocation: '$(Build.ArtifactStagingDirectory)/publish/coverage/Cobertura.xml'
            pathToSources: '$(Build.SourcesDirectory)/sources/dev'
            reportDirectory: '$(Build.ArtifactStagingDirectory)/publish/coverage'
            codeCoverageTool: Cobertura
            failIfCoverageEmpty: true
          env:
            DISABLE_COVERAGE_AUTOGENERATE: 'true' # Local environment variable

Debug Log

##[debug]codeCoverageTool=Cobertura
##[debug]summaryFileLocation=/mnt/vss/_work/1/a/publish/coverage/Cobertura.xml
##[debug]reportDirectory=/mnt/vss/_work/1/a/publish/coverage
##[debug]additionalCodeCoverageFiles=undefined
##[debug]failIfCoverageEmpty=true
##[debug]System.DefaultWorkingDirectory=/mnt/vss/_work/1/s
##[debug]pathToSources=/mnt/vss/_work/1/s/sources/dev
##[debug]disable.coverage.autogenerate=true  <<<< auto generate disabled 
##[debug]disabling auto generation

[Pranav Bhatt]

I also tried directly using PublishCodeCoverageResults@1:

1. with autogenerate disabled : produces a jacoco report, which is clickable but all html styling is stripped out.
2. without autogenerate disabled: produces a cobertura report which is not clickable and has the message : File Doesn't exits.
   I will upload the screenshot in the folder for both cases.

[Daniel Palme]

Your setup seems correct. Are you sure, that the sourcedirs is correct: sourceDirs: '$(Build.SourcesDirectory)/sources/dev'?

Does (for example) the following file exist: /mnt/vss/_work/1/s/sources/dev/com/awareai/analytics/activepivot/ClientCubeManagerData.java?

I tried your conriguration on my machine and it works for me. I created a dummy file com/awareai/analytics/activepivot/ClientCubeManagerData.java and it was correctly read by ReportGenerator.

Regarding PublishCodeCoverageResults@1:
With autogenerate disabled: This report looks like the default JaCoCo report

[Pranav Bhatt]

• sourceDirs is pointing to top level directory .. but since it is a multi module java project there are atleast 13 other modules
• is there a way we can use a pattern match * so that directories within the top level dir could be searched for the file, or do we need to give a comma separated list of all java source file directories?

[Daniel Palme]

You'll need to supply a list of directories (separated by ;).

[Pranav Bhatt]

@danielpalme It worked after supplying a ; list of directories. It would be nice to have something like : sourceDirs: '$(Build.SourcesDirectory)/sources/dev/**/src/main/java'.

Some users have used this pattern, but i think it doesn't work.