Maven Failsafe plugin cannot find class

Question

The project where I'm working on has several modules and one of the modules is integration_test, integrations test for all the others modules. This is a weird architecture for me and I'm not sure if I'm handling this situation correctly.

We haven't continous integration, right now we are running the suite test from Eclipse but we want to run it from a continuos integration server. I have been working on update our POM to execute it from the command line. I will include a sample project below because paste here the classes I think is not enough.

I followed the Maven Failsafe plugin documentation, but when I execute mvn clean verify -P integration-test I get Cannot find class in classpath: TestApiMain

I think this is because is trying to running that class before it's compiled but I don't know how to run the integration test after all other modules are actually compiled. I also want to implement Jacoco for test coverage. Reading the following guide to implement Jacoco I think I'm close:

https://www.petrikainulainen.net/programming/maven/creating-code-coverage-reports-for-unit-and-integration-tests-with-the-jacoco-maven-plugin/

Exception when execute mvn clean verify -P integration-test:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-failsafe-plugin:2.20.1:verify (integration-test) on project root: There are test failures.
[ERROR] 
[ERROR] Please refer to /home/francisco_aguiar/repos/sample_project/target/failsafe-reports for the individual test results.
[ERROR] Please refer to dump files (if any exist) [date]-jvmRun[N].dump, [date].dumpstream and [date]-jvmRun[N].dumpstream.
[ERROR] org.apache.maven.surefire.booter.SurefireBooterForkException: There was an error in the forked process
[ERROR] 
[ERROR] Cannot find class in classpath: TestApiMain
[ERROR] at org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:673)
[ERROR] at org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:535)
[ERROR] at org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:280)
[ERROR] at org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:245)
[ERROR] at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider(AbstractSurefireMojo.java:1124)
[ERROR] at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked(AbstractSurefireMojo.java:954)
[ERROR] at org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute(AbstractSurefireMojo.java:832)
[ERROR] at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
[ERROR] at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
[ERROR] at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
[ERROR] at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
[ERROR] at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
[ERROR] at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
[ERROR] at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
[ERROR] at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
[ERROR] at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
[ERROR] at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
[ERROR] at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
[ERROR] at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
[ERROR] at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
[ERROR] at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
[ERROR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[ERROR] at java.lang.reflect.Method.invoke(Method.java:498)
[ERROR] at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
[ERROR] at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
[ERROR] at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
[ERROR] at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

Sample_project: https://drive.google.com/file/d/1Ow--OYz4LzxNZvoBPtb5Ub2khXSR74w3/view?usp=sharing

Answer 1

For anyone who reads this who has teh project configured correctly but still has a classes not found then see if the following applies.

When upgrading to 3.0.0-M5 this plugin can fail to find classes from a transitive dependency. One simple fix instead of rolling back to 3.0.0-M4 is to add classesDirectory to your plugin configuration

<pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-failsafe-plugin</artifactId>
                <configuration>
                    <classesDirectory>${project.build.outputDirectory}</classesDirectory>
                </configuration>
            </plugin>
        </plugins>
</pluginManagement>

Answer 2

You defined plugin failsafe in parent pom in build/plugins section. It means every module, including parent, in phase integration-test must call failsafe(TestApiMain.class).

It will not work, because TestApiMain is defined in last module integration_test

You should move failsafe definition to integration_test/pom.xml to section build/plugins