PlexusTest

import static org.assertj.core.api.Assertions.assertThat;

import java.io.File;
import java.util.List;

import org.apache.maven.scm.ScmException;
import org.apache.maven.scm.ScmFile;
import org.apache.maven.scm.ScmFileSet;
import org.apache.maven.scm.command.status.StatusScmResult;
import org.apache.maven.scm.manager.NoSuchScmProviderException;
import org.apache.maven.scm.manager.ScmManager;
import org.apache.maven.scm.repository.ScmRepository;
import org.apache.maven.scm.repository.ScmRepositoryException;
import org.codehaus.plexus.PlexusTestCase;
public class SecondTest extends PlexusTestCase {

    protected void setUp() throws Exception {
	super.setUp();
	super.setupContainer();
    }
    
    protected void tearDown() throws Exception {
	super.tearDown();
    }

    public void testFirst() throws Exception {
	ScmManager scmManager = (ScmManager) lookup( ScmManager.ROLE );

        assertThat(scmManager).isNotNull();
        System.out.println("Type:" + scmManager.getClass().getName());

More experiments showed me that if i use 3.2.5 for maven-core it works, but if i use maven-core version 3.3.1...3.3.9 it does not work..