Cleanup after all junit tests

I'm using JUnit 4.9. Will this help?:

import junit.framework.TestCase;

import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.runner.RunWith;
import org.junit.runners.Suite;
import org.junit.runners.Suite.SuiteClasses;

@RunWith(Suite.class)
@SuiteClasses({First.class,Second.class,Third.class})
public class RunTestSuite extends TestCase {
    @BeforeClass
    public static void doYourOneTimeSetup() {
        ...
    }

    @AfterClass
    public static void doYourOneTimeTeardown() {
        ...
    }    
}

Edit: I am quite positive (unless I misunderstand your question) that my solution is what you are looking for. i.e. one teardown method after all your tests have ran. No listener required, JUnit has this facility. Thanks.

I recommend to use org.junit.runner.notification.RunListener, example:

public class TestListener extends RunListener {
  @Override
  public void testRunStarted(Description description) throws Exception {
     // Called before any tests have been run.
  }
  @Override
  public void testRunFinished(Result result) throws Exception {
     // Called when all tests have finished
  }
}

Read more directly in JUnit java doc. You can use that even with Maven's surefire (unit tests) plugin or failsafe plugin (integration tests) by adding following code into plugin configuration:

<properties>
  <property>
    <name>listener</name>
    <value>com.innovatrics.afismq.it.TestListener</value>
  </property>
</properties>

Just encountered the same problem.
My solution:

For a global set up: use (lazy) singleton to access something global that requires instantiation before the tests. The first test that accesses this singleton will trigger the global set up process.

For a global tear down: use a Java shutdown hook:

Runtime.getRuntime().addShutdownHook(new Thread(() -> do_your_global_cleanup())));

Cleanup after all junit tests

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