sonarqube displays 0 unit tests data coverage - unit-testing

Question

Trying to see unit test code coverage on sonar. I am using Jacoco code coverage and able to get the code coverage for my project when I execute my code in eclipse. However while running in Jenkins, I get following messages and warnings as NO Tests to run , No Sources to compile
I can the some code coverage report on sonar but for unit tests it shows. How can Sonar display the coverage for unit tests? Also how can I eliminate the warning messages?
Attaching my surefire and jacoco plugins and jebnkins console log
Kindly help
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.6.4.201312101107</version>
<executions>
<execution>
<id>prepare-unit-test-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>generate-unit-test-report</id>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.12.4</version>
<dependencies>
<dependency>
<groupId>org.apache.maven.surefire</groupId>
<artifactId>surefire-junit47</artifactId>
<version>2.12.4</version>
</dependency>
<dependency>
<groupId>org.apache.maven.surefire</groupId>
<artifactId>surefire-testng</artifactId>
<version>2.12.4</version>
</dependency>
</dependencies>
<configuration>
<systemPropertyVariables>
<environment>${env.USER}</environment>
</systemPropertyVariables>
</configuration>
</plugin>
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Project Test 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) # project test ---
[INFO] Deleting /Users/ray1/.jenkins/jobs/try10-aprl13/workspace/target
[INFO]
[INFO] --- jacoco-maven-plugin:0.6.4.201312101107:prepare-agent (prepare-unit-test-agent) # project test ---
[INFO] argLine set to -javaagent:/Users/ray1/.m2/repository/org/jacoco/org.jacoco.agent/0.6.4.201312101107/org.jacoco.agent-0.6.4.201312101107-runtime.jar=destfile=/Users/ray1/.jenkins/jobs/try10-aprl13/workspace/target/jacoco.exec
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) # project test ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/ray1/.jenkins/jobs/try10-aprl13/workspace/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:2.5.1:compile (default-compile) # project test---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) # project test ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/ray1/.jenkins/jobs/try10-aprl13/workspace/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:2.5.1:testCompile (default-testCompile) # project test ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) # project test ---
[INFO] No tests to run.
[JENKINS] Recording test results
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (run-unit-tests) # project test ---
[INFO] No tests to run.
[INFO] Skipping execution of surefire because it has already been run for this configuration
[JENKINS] Recording test results
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) # project test ---
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] Building jar: /Users/ray1/.jenkins/jobs/try10-aprl13/workspace/target/project test-0.0.1-SNAPSHOT.jar
[INFO]
[INFO] --- jacoco-maven-plugin:0.6.4.201312101107:report (generate-unit-test-report) # project test ---
[INFO] Skipping JaCoCo execution due to missing execution data file
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) # project test ---
[INFO] Installing /Users/ray1/.jenkins/jobs/try10-aprl13/workspace/target/project test-0.0.1-SNAPSHOT.jar to /Users/ray1/.m2/repository/com/company/taf/project test/0.0.1-SNAPSHOT/project test-0.0.1-SNAPSHOT.jar
[INFO] Installing /Users/ray1/.jenkins/jobs/try10-aprl13/workspace/pom.xml to /Users/ray1/.m2/repository/com/company/taf/project test/0.0.1-SNAPSHOT/project test-0.0.1-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6.801 s
[INFO] Finished at: 2015-04-14T10:25:50-07:00
[INFO] Final Memory: 15M/81M
[INFO] ------------------------------------------------------------------------
Waiting for Jenkins to finish collecting data
[JENKINS] Archiving /Users/ray1/.jenkins/jobs/try10-aprl13/workspace/pom.xml to com.company.inner/project test /0.0.1-SNAPSHOT/project test-0.0.1-SNAPSHOT.pom
[JENKINS] Archiving /Users/ray1/.jenkins/jobs/try10-aprl13/workspace/target/project test-0.0.1-SNAPSHOT.jar to com.company.inner/project test /0.0.1-SNAPSHOT/project test-0.0.1-SNAPSHOT.jar
channel stopped
Finished: SUCCESS

Answer 1

you need to add this section to your parent pom.xml
<properties>
<!-- Properties to make sure we capture *all* coverage -->
<sonar.java.coveragePlugin>jacoco</sonar.java.coveragePlugin>
<sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
<sonar.language>java</sonar.language>
<sonar.jacoco.reportPath>${project.basedir}/../target/jacoco.exec</sonar.jacoco.reportPath>
</properties>

Answer 2

I had the similar issue, 0.0% coverage & no unit tests count on Sonar dashboard with SonarQube 6.7.2:
Maven : 3.5.2,
Java : 1.8,
Jacoco : Worked with 7.0/7.9/8.0,
OS : Windows
After a lot of struggle finding for correct solution, resolved issue with this configuration my parent pom looks like:
<properties>
<!--Sonar -->
<sonar.java.coveragePlugin>jacoco</sonar.java.coveragePlugin>
<sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
<sonar.jacoco.reportPath>${project.basedir}/../target/jacoco.exec</sonar.jacoco.reportPath>
<sonar.language>java</sonar.language>
</properties>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
<plugin>
<groupId>org.sonarsource.scanner.maven</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>3.4.0.905</version>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.9</version>
<configuration>
<destFile>${sonar.jacoco.reportPath}</destFile>
<append>true</append>
</configuration>
<executions>
<execution>
<id>agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
I've tried few other options like jacoco-aggregate & even creating a sub-module by including that in parent pom but nothing really worked & this is simple. I see in logs <sonar.jacoco.reportPath> is deprecated,but still works as is and seems like auto replaced on execution or can be manually updated to <sonar.jacoco.reportPaths> or latest. Once after doing setup start with mvn clean install then mvn org.jacoco:jacoco-maven-plugin:prepare-agent install & then do mvn sonar:sonar , this is what I've tried please let me know if some other best possible solution available.Hope this helps!! If not please post your question..