<groupId>maven-test</groupId>
      <artifactId>maven-test-c</artifactId>
      <version>1.0</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>maven-test-d</artifactId>
      <version>1.1</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
  </dependencies>

      <groupId>maven-test</groupId>
      <artifactId>t08-c</artifactId>
      <version>1.0</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t08-d</artifactId>
      <version>1.1</version>
      <type>jar</type>
      <scope>compile</scope>
      <optional>false</optional>
    </dependency>
  </dependencies>

      <groupId>maven-test</groupId>
      <artifactId>t08-c</artifactId>
      <version>1.0</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t08-d</artifactId>
      <version>1.1</version>
      <type>jar</type>
      <scope>compile</scope>
      <optional>false</optional>
    </dependency>
  </dependencies>

      <groupId>maven-test</groupId>
      <artifactId>maven-test-c</artifactId>
      <version>1.0</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>maven-test-d</artifactId>
      <version>1.1</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
  </dependencies>

                        eventCatapult.fire(ExecutionEvent.Type.ForkedProjectStarted, session, mojoExecution);

                        execute(session, mojoExecutions);

                        eventCatapult.fire(ExecutionEvent.Type.ForkedProjectSucceeded, session, mojoExecution);
                    } catch (LifecycleExecutionException e) {
                        eventCatapult.fire(ExecutionEvent.Type.ForkedProjectFailed, session, mojoExecution, e);

        ForkFailed,
        ForkedProjectStarted,
        ForkedProjectSucceeded,
        ForkedProjectFailed,
    }

    /**
     * Gets the type of the event.
     *
     * @return The type of the event, never {@code null}.
     */
    Type getType();

    /**
     * Gets the session from which this event originates.
     *
     * @return The current session, never {@code null}.
     */

import org.apache.maven.execution.ExecutionEvent.Type;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.internal.ExecutionEventCatapult;
import org.apache.maven.plugin.MojoExecution;

/**
 */
public class ExecutionEventCatapultStub implements ExecutionEventCatapult {

    public void fire(Type eventType, MavenSession session, MojoExecution mojoExecution) {}

      <fields>
        <field>
          <name>exportedPackages</name>
          <version>1.0.0</version>
          <association>
            <type>String</type>
            <multiplicity>*</multiplicity>
          </association>

        return value;
    }

    private static boolean isTypeCompatible(Class<?> type, Object value) {
        if (type.isInstance(value)) {
            return true;
        }
        // likely Boolean -> boolean, Short -> int etc. conversions, it's not the problem case we try to avoid
        return ((type.isPrimitive() || type.getName().startsWith("java.lang."))

  <packaging>jar</packaging>
  <version>1.0</version>
  <dependencies>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t07-d</artifactId>
      <version>1.1</version>
      <type>jar</type>
      <scope>compile</scope>
      <optional>true</optional>
    </dependency>
  </dependencies>