Error on sonar qube report generation.

[systemlogic]

It is failing every time at

INFO: Sensor JavaXmlSensor [java] (done) | time=1ms
INFO: Sensor HTML [web]
INFO: Sensor HTML [web] (done) | time=7ms
INFO: Sensor Generic Coverage Report
INFO: Parsing /home/harora37/.cache/bazel/_bazel_harora37/4fbb135611fce4db8e7b78725d5f3b27/execroot/aid_templating_engine/bazel-out/_coverage/_coverage_report.dat
INFO: ------------------------------------------------------------------------
INFO: EXECUTION FAILURE
INFO: ------------------------------------------------------------------------
INFO: Total time: 4.639s
INFO: Final Memory: 12M/68M
INFO: ------------------------------------------------------------------------
ERROR: Error during SonarQube Scanner execution
ERROR: Error during parsing of the generic coverage report '/home/harora37/.cache/bazel/_bazel_harora37/4fbb135611fce4db8e7b78725d5f3b27/execroot/aid_templating_engine/bazel-out/_coverage/_coverage_report.dat'. Look at SonarQube documentation to know the expected XML format.
ERROR: Caused by: Unexpected EOF in prolog
 at [row,col {unknown-source}]: [1,0]
ERROR: 
ERROR: Re-run SonarQube Scanner using the -X switch to enable full debug logging.

BUILD file

sonarqube(
    name = "sq",
    project_key = "//:engine",
    project_name = "Template Engine",
    srcs = [
#        "Hello.java",
        "engine",
    ],
    targets = [
        "//:engine",
    ],
    modules = {
#        "//path/to/component:sq_mycomponent": "path/to/component",
    },
    coverage_report = "//:coverage_report",
    scm_info = ["//:git"],
   )

and I am running sonarQube on docker. Some time I see XML on console but nothing comes to Sonar Qube web GUI

[Zetten]

It looks like maybe you're not using the SQ coverage report aggregator. So the first thing is to make sure the coverage report is in the correct format - check the content of bazel-out/_coverage/_coverage_report.dat.

For example, in https://github.com/cgi-eoss/libeopp we have the coverage parameters in .bazelrc:

coverage --collect_code_coverage
coverage --combined_report=lcov
coverage --coverage_report_generator=@bazel_sonarqube//:sonarqube_coverage_generator

By running bazel coverage //... and checking the generated file, we can see the report is correctly in SQ's generic coverage format, and the SQ Scanner will parse it during analysis:

$ head bazel-out/_coverage/_coverage_report.dat
<coverage version="1">
    <file path="file-stream/src/main/java/com/cgi/eoss/eopp/filestream/EoppFileStreamResource.java">
        <lineToCover lineNumber="37" covered="true"/>
        <lineToCover lineNumber="54" covered="true"/>
        <lineToCover lineNumber="55" covered="true"/>
        <lineToCover lineNumber="67" covered="true"/>
        <lineToCover lineNumber="68" covered="true"/>
        <lineToCover lineNumber="69" covered="true"/>
        <lineToCover lineNumber="70" covered="true"/>
        <lineToCover lineNumber="71" covered="true"/>

[systemlogic]

This can be close