<plugin>
	<groupId>org.pitest</groupId>
	<artifactId>pitest-maven</artifactId>
	<version>1.1.5</version>
</plugin>

<configuration>
	<targetClasses>
		<param>com.your.package.root.for.mutation*</param>
	</targetClasses>
	<targetTests>
		<param>com.your.package.root.for.tests*</param>
	</targetTests>
</configuration>

package com.hascode.tutorial.entity;
 
public class Book {
	private final String title;
	private final String id;
 
	public Book(final String title, final String id) {
		this.title = title;
		this.id = id;
	}
 
	// getter ommitted,
 
	@Override
	public String toString() {
		StringBuilder builder = new StringBuilder();
		builder.append("Book [title=").append(title).append(", id=").append(id).append("]");
		return builder.toString();
	}
}

package com.hascode.tutorial.service;
 
import java.util.UUID;
 
import com.hascode.tutorial.entity.Book;
 
public class BookBean {
	private static final int MIN_LENGTH = 3;
 
	public Book create(final String title) {
		if (title == null) {
			throw new IllegalArgumentException("title must be set");
		}
		if (title.length() <= MIN_LENGTH) {
			throw new IllegalArgumentException("title must have a minimal length of " + MIN_LENGTH);
		}
		return new Book(title, UUID.randomUUID().toString().toUpperCase());
	}
}

package com.hascode.tutorial.service;
 
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.isEmptyOrNullString;
import static org.hamcrest.Matchers.not;
import static org.hamcrest.Matchers.notNullValue;
 
import org.junit.Test;
 
import com.hascode.tutorial.entity.Book;
 
public class BookBeanTest {
	private static final String TITLE = "Some book";
 
	BookBean bookBean = new BookBean();
 
	@Test
	public void shouldCreateBook() throws Exception {
		Book book = bookBean.create(TITLE);
		assertThat(book, notNullValue());
		assertThat(book.getTitle(), equalTo(TITLE));
		assertThat(book.getId(), not(isEmptyOrNullString()));
	}
 
	@Test(expected = IllegalArgumentException.class)
	public void shouldFailCreateBookWithNoTitleGiven() throws Exception {
		bookBean.create(null);
	}
 
	@Test(expected = IllegalArgumentException.class)
	public void shouldFailCreateBookWithTooShortTitleGiven() throws Exception {
		bookBean.create("ab");
	}
}

$ mvn org.pitest:pitest-maven:mutationCoverage
[..]
[INFO] Found plugin : Default csv report plugin
[INFO] Found plugin : Default xml report plugin
[INFO] Found plugin : Default html report plugin
[INFO] Found plugin : Default limit mutations plugin
[INFO] Found shared classpath plugin : Default mutation engine
[INFO] Adding org.pitest:pitest to SUT classpath
[INFO] Mutating from /data/project/pitest-tutorial/target/classes
[INFO] Defaulting to group id (com.hascode.tutorial*)
3:48:50 PM PIT >> INFO : Verbose logging is disabled. If you encounter an problem please enable it before reporting an issue.
3:48:50 PM PIT >> INFO : Sending 1 test classes to slave
3:48:50 PM PIT >> INFO : Sent tests to slave
3:48:50 PM PIT >> INFO : SLAVE : 3:48:50 PM PIT >> INFO : Checking environment
3:48:50 PM PIT >> INFO : SLAVE : 3:48:50 PM PIT >> INFO : Found  3 tests
3:48:50 PM PIT >> INFO : SLAVE : 3:48:50 PM PIT >> INFO : Dependency analysis reduced number of potential tests by 0
3:48:50 PM PIT >> INFO : SLAVE : 3:48:50 PM PIT >> INFO : 3 tests received
\3:48:50 PM PIT >> INFO : Calculated coverage in 0 seconds.
3:48:50 PM PIT >> INFO : Created  2 mutation test units
-3:48:51 PM PIT >> INFO : Completed in 1 seconds
================================================================================
- Timings
================================================================================
> scan classpath : < 1 second
> coverage and dependency analysis : < 1 second
> build mutation tests : < 1 second
> run mutation analysis : < 1 second
--------------------------------------------------------------------------------
> Total  : 1 seconds
--------------------------------------------------------------------------------
================================================================================
- Statistics
================================================================================
>> Generated 7 mutations Killed 5 (71%)
>> Ran 7 tests (1 tests per mutation)
================================================================================
- Mutators
================================================================================
> org.pitest.mutationtest.engine.gregor.mutators.ConditionalsBoundaryMutator
>> Generated 1 Killed 0 (0%)
> KILLED 0 SURVIVED 1 TIMED_OUT 0 NON_VIABLE 0
> MEMORY_ERROR 0 NOT_STARTED 0 STARTED 0 RUN_ERROR 0
> NO_COVERAGE 0
--------------------------------------------------------------------------------
> org.pitest.mutationtest.engine.gregor.mutators.ReturnValsMutator
>> Generated 4 Killed 3 (75%)
> KILLED 3 SURVIVED 0 TIMED_OUT 0 NON_VIABLE 0
> MEMORY_ERROR 0 NOT_STARTED 0 STARTED 0 RUN_ERROR 0
> NO_COVERAGE 1
--------------------------------------------------------------------------------
> org.pitest.mutationtest.engine.gregor.mutators.NegateConditionalsMutator
>> Generated 2 Killed 2 (100%)
> KILLED 2 SURVIVED 0 TIMED_OUT 0 NON_VIABLE 0
> MEMORY_ERROR 0 NOT_STARTED 0 STARTED 0 RUN_ERROR 0
> NO_COVERAGE 0
--------------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.044s
[INFO] Finished at: Sun May 10 15:48:51 CEST 2015
[INFO] Final Memory: 12M/205M
[INFO] ------------------------------------------------------------------------

git clone https://bitbucket.org/hascode/pitest-tutorial.git