protected ActivationFile.Builder transformActivationFile_Missing(
                    Supplier<? extends ActivationFile.Builder> creator,
                    ActivationFile.Builder builder,
                    ActivationFile target) {
                String path = target.getMissing();
                String xformed = transformPath(path, target, "missing");

                PrintStream ps = new PrintStream(os);
                ps.println("Unable to load the mojo '" + mojoDescriptor.getGoal() + "' in the plugin '"
                        + pluginDescriptor.getId() + "'. A required class is missing: "
                        + cause.getMessage());
                pluginRealm.display(ps);

                throw new PluginContainerException(mojoDescriptor, pluginRealm, os.toString(), cause);

        system properties and user properties.&lt;/p></description>
      <fields>
        <field>
          <name>missing</name>
          <version>4.0.0+</version>
          <type>String</type>
          <description>The name of the file that must be missing to activate the
          profile.</description>
        </field>
        <field>
          <name>exists</name>

import org.apache.maven.api.services.ModelBuilderRequest;
import org.apache.maven.api.services.ModelProblemCollector;

/**
 * Checks the model for missing or invalid values.
 *
 */
public interface ModelValidator {
    /**
     * Checks the specified file model for missing or invalid values. This model is directly created from the POM
     * file and has not been subjected to inheritance, interpolation or profile/default injection.

        assertContains(problems.messages.get(0), "'mirrors.mirror.id' must not be 'local'");
        assertContains(problems.messages.get(1), "'mirrors.mirror.url' for local is missing");
        assertContains(problems.messages.get(2), "'mirrors.mirror.mirrorOf' for local is missing");
        assertContains(problems.messages.get(3), "'mirrors.mirror.id' must not contain any of these characters");
    }

    @Test

        assertThrows(
                ProjectBuildingException.class,
                () -> buildPom("artifact-id-inheritance/child"),
                "Missing artifactId did not cause validation error");
    }

    private void assertPathSuffixEquals(String expected, Object actual) {
        String a = actual.toString();

    void testRoundTripProfiles() {
        Random entropy = new Random();
        ActivationFile af = ActivationFile.newBuilder()
                .exists("exists" + Long.toHexString(entropy.nextLong()))
                .missing("missing" + Long.toHexString(entropy.nextLong()))
                .build();
        ActivationProperty ap = ActivationProperty.newBuilder()
                .name("name" + Long.toHexString(entropy.nextLong()))

 * under the License.
 */
package org.apache.maven.api.services;

/**
 * The transformerContextBuilder is responsible for initializing the TransformerContext.
 * In case rawModels are missing, it could do new buildingRequests on the ModelBuilder.
 *
 * @since 4.0.0
 */
public interface ModelTransformerContextBuilder {
    /**
     * This method is used to initialize the TransformerContext
     *

    }

    private void printErrors(ArtifactResolutionResult result) {
        if (result.hasMissingArtifacts()) {
            for (Artifact artifact : result.getMissingArtifacts()) {
                System.err.println("Missing: " + artifact);
            }
        }

        if (result.hasExceptions()) {
            for (Exception e : result.getExceptions()) {
                e.printStackTrace();
            }
        }

                        .exists(settingsFile.getExists())
                        .missing(settingsFile.getMissing())
                        .location("exists", toLocation(settingsFile.getLocation("exists")))
                        .location("missing", toLocation(settingsFile.getLocation("missing")))
                        .build());
            }