if (t instanceof Exception && !(t instanceof RuntimeException)) {
            eventCatapult.fire(ExecutionEvent.Type.ProjectFailed, currentSession, null, (Exception) t);
        }

        // reactor failure modes
        if (t instanceof RuntimeException || !(t instanceof Exception)) {
            // fail fast on RuntimeExceptions, Errors and "other" Throwables
            // assume these are system errors and further build is meaningless

      <version>4.0.0+</version>
      <description>Describes where an artifact has moved to. If any of the values are omitted, it is
        assumed to be the same as it was before.</description>
      <fields>
        <field>
          <name>groupId</name>
          <version>4.0.0+</version>
          <description>The group ID the artifact has moved to.</description>
          <type>String</type>
        </field>

import org.apache.maven.toolchain.model.PersistedToolchains;

/**
 * Assists in populating an execution request for invocation of Maven.
 *
 */
public interface MavenExecutionRequestPopulator {
    /**
     * Copies the values from the given toolchains into the specified execution request. This method will replace any
     * existing values in the execution request that are controlled by the toolchains. Hence, it is expected that this

                    }
                } else {
                    // move on to next in r1
                    if (i1.hasNext()) {
                        res1 = i1.next();
                    } else {
                        done = true;
                    }
                }
            } else {
                // move on to next in r2
                if (i2.hasNext()) {
                    res2 = i2.next();

 */
public interface ProfileInjector {

    /**
     * Merges values from the specified profile into the given model. Implementations are expected to keep the profile
     * and model completely decoupled by injecting deep copies rather than the original objects from the profile.
     *
     * @param model The model into which to merge the values defined by the profile, must not be <code>null</code>.

              <!-- Remove plexus utils -->
              <exclude>org.apache.maven.project.ProjectSorter#getDAG():METHOD_REMOVED</exclude>
              <!-- classes moved to maven-compat -->
              <exclude>org.apache.maven.plugin.PluginManager</exclude>
              <exclude>org.apache.maven.repository.ArtifactDoesNotExistException</exclude>

 without limitation  the rights to  use, copy, modify,  merge, publish,
 distribute,  sublicense, and/or sell  copies of  the Software,  and to
 permit persons to whom the Software  is furnished to do so, subject to
 the following conditions:

 The  above  copyright  notice  and  this permission  notice  shall  be
 included in all copies or substantial portions of the Software.

 THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,

import org.apache.maven.api.services.ModelRepositoryHolder;
import org.apache.maven.api.services.RepositoryFactory;

public class DefaultModelRepositoryHolder implements ModelRepositoryHolder {

    /**
     * The possible merge modes for combining remote repositories.
     */
    public enum RepositoryMerging {

        /**
         * The repositories declared in the POM have precedence over the repositories specified in the request.
         */

public interface InheritanceAssembler {

    /**
     * Merges values from the specified parent model into the given child model. Implementations are expected to keep
     * parent and child completely decoupled by injecting deep copies of objects into the child rather than the original
     * objects from the parent.
     *
     * @param child The child model into which to merge the values inherited from the parent, must not be

     * In turn, every {@link Language} implementation must be compatible with {@code NONE} language.
     */
    Language NONE = language("none");

    // TODO: this should be moved out from here to Java Support (builtin into core)
    Language JAVA_FAMILY = language("java");