maven - Getting "Skipping JaCoCo execution due to missing execution data file" upon executing JaCoCo? -

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i'm using maven 3.0.3, junit 4.8.1, , jacoco 0.6.3.201306030806, , trying create test coverage reports.

i have project unit tests can't reports run, repeatedly getting error skipping jacoco execution due missing execution data file when run:

mvn clean install -p test-coverage

here how pom configured:

<plugin>   <groupid>org.apache.maven.plugins</groupid>   <artifactid>maven-surefire-plugin</artifactid>   <version>2.14.1</version>   <configuration>     <reuseforks>true</reuseforks>     <argline>-xmx2048m</argline>   </configuration> </plugin> <plugin>   <groupid>org.apache.maven.plugins</groupid>   <artifactid>maven-failsafe-plugin</artifactid>   <version>2.14.1</version>   <configuration>     <reuseforks>true</reuseforks>     <argline>-xmx4096m -xx:maxpermsize=512m ${itcoverageagent}</argline>   </configuration>   <executions>     <execution>       <goals>         <goal>integration-test</goal>         <goal>verify</goal>       </goals>     </execution>   </executions> </plugin> ... <profile>   <id>test-coverage</id>   <build>     <plugins>       <plugin>         <groupid>org.jacoco</groupid>         <artifactid>jacoco-maven-plugin</artifactid>         <version>0.6.3.201306030806</version>         <configuration>           <destfile>${basedir}/target/coverage-reports/jacoco-unit.exec</destfile>           <datafile>${basedir}/target/coverage-reports/jacoco-unit.exec</datafile>         </configuration>         <executions>           <execution>             <id>prepare-unit-tests</id>             <goals>               <goal>prepare-agent</goal>             </goals>           </execution>           <!-- prepare agent measuring integration tests -->           <execution>             <id>prepare-integration-tests</id>             <goals>               <goal>prepare-agent</goal>             </goals>             <phase>pre-integration-test</phase>             <configuration>               <propertyname>itcoverageagent</propertyname>             </configuration>           </execution>           <execution>             <id>jacoco-site</id>             <phase>verify</phase>             <goals>               <goal>report</goal>             </goals>           </execution>         </executions>       </plugin>     </plugins>   </build> </profile>

all tests run successfully. here of output maven …

[info] --- jacoco-maven-plugin:0.6.2.201302030002:prepare-agent (prepare-unit-tests) @ myproject --- [info] argline set -javaagent:/users/davea/.m2/repository/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002-runtime.jar=destfile=/users/davea/dropbox/workspace/myproject/target/jacoco.exec [info]      ... tests run: 14, failures: 0, errors: 0, skipped: 0  [info]     ... [info]  [info] --- jacoco-maven-plugin:0.6.2.201302030002:prepare-agent (prepare-integration-tests) @ myproject --- [info] itcoverageagent set -javaagent:/users/davea/.m2/repository/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002-runtime.jar=destfile=/users/davea/dropbox/workspace/myproject/target/jacoco.exec  [info]  [info] --- maven-failsafe-plugin:2.14.1:integration-test (default) @ myproject --- [warning] file encoding has not been set, using platform encoding macroman, i.e. build platform dependent! [info]  [info] --- maven-failsafe-plugin:2.14.1:verify (default) @ myproject --- [info] failsafe report directory: /users/davea/dropbox/workspace/myproject/target/failsafe-reports [warning] file encoding has not been set, using platform encoding macroman, i.e. build platform dependent! [info]  [info] --- jacoco-maven-plugin:0.6.2.201302030002:report (jacoco-site) @ myproject --- [info] skipping jacoco execution due missing execution data file [info]

any ideas configuration i'm missing?

jacoco-maven-plugin:0.7.10-snapshot

from jacoco:prepare-agent says:

one of ways in case of maven-surefire-plugin - use syntax late property evaluation:

<plugin>   <groupid>org.apache.maven.plugins</groupid>   <artifactid>maven-surefire-plugin</artifactid>   <configuration>     <argline>@{argline} -your -extra -arguments</argline>   </configuration> </plugin>

note @{argline} that's added -your -extra -arguments.

thanks slava semushin noticing change , reporting in comment.

jacoco-maven-plugin:0.7.2-snapshot

following jacoco:prepare-agent says:

[org.jacoco:jacoco-maven-plugin:0.7.2-snapshot:prepare-agent] prepares property pointing jacoco runtime agent can passed vm argument application under test. depending on project packaging type default property following name set:

  • tycho.testargline packaging type eclipse-test-plugin and
  • argline otherwise.

note these properties must not overwritten test configuration, otherwise jacoco agent cannot attached. if need custom parameters please append them. example:

<argline>${argline} -your -extra -arguments</argline>

resulting coverage information collected during execution , default written file when process terminates.

you should change following line in maven-surefire-plugin plugin configuration (note ${argline} inside <argline>):

<argline>-xmx2048m</argline>

to

<argline>${argline} -xmx2048m</argline>

make necessary changes other plugin maven-failsafe-plugin , replace following (again, notice ${argline}):

<argline>-xmx4096m -xx:maxpermsize=512m ${itcoverageagent}</argline>

to

<argline>${argline} -xmx4096m -xx:maxpermsize=512m ${itcoverageagent}</argline>

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