import org.apache.maven.api.annotations.Consumer;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**
 * A listener for session events.
 * TODO: open this to other events like similar to {@code org.apache.maven.eventspy.EventSpy}
 *
 * @since 4.0.0
 */
@Experimental
@FunctionalInterface
@Consumer
public interface Listener {
    void onEvent(@Nonnull Event event);

 *
 * @since 4.0.0
 */
@Experimental
public class SettingsBuilderException extends MavenException {

    private final List<BuilderProblem> problems;

    /**
     * @param message the message to give
     * @param e the {@link Exception}
     */
    public SettingsBuilderException(String message, Exception e) {
        super(message, e);
        this.problems = List.of();
    }

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

import java.util.function.Supplier;

import org.apache.maven.api.services.Source;

/**
 * Caches auxiliary data used during model building like already processed raw/effective models. The data in the cache
 * is meant for exclusive consumption by the model builder and is opaque to the cache implementation. The cache key is

                .appendText(formatLocation(columnNumber, lineNumber));
    }

    private String formatLocation(int columnNumber, int lineNumber) {
        return String.format("line %d, column %d", lineNumber, columnNumber);
    }

    @Override
    public void describeMismatch(final Object o, final Description description) {
        if (!(o instanceof ProjectBuildingResult)) {

            buffer.append(getSource());
        }
        if (getLineNumber() > 0) {
            if (!buffer.isEmpty()) {
                buffer.append(", ");
            }
            buffer.append("line ").append(getLineNumber());
        }
        if (getColumnNumber() > 0) {
            if (!buffer.isEmpty()) {
                buffer.append(", ");
            }

import java.util.Map;

/**
 * A core extension to monitor Maven's execution. Typically, such an extension gets loaded into Maven by specifying the
 * property {@code maven.ext.class.path} on the command line. As soon as dependency injection is set up, Maven
 * looks up all implementers of this interface and calls their {@link #init(Context)} method. Note:

     */
    @Nonnull
    ArtifactCoordinate create(@Nonnull ArtifactCoordinateFactoryRequest request);

    /**
     * Creates a coordinate out of string that is formatted like:
     * {@code <groupId>:<artifactId>[:<extension>[:<classifier>]]:<version>}
     *
     * @param session the session.
     * @param coordinateString the string having "standard" coordinate.

        if (strValue == null || strValue.isEmpty()) {
            return false;
        }

        if (isIgnoredProperty(strValue)) {
            return false;
        }

        // for declaration like @Parameter( property = "config.property" )
        // the value will contain ${config.property}

        try {
            return expressionEvaluator.evaluate(strValue) != null;

     * <pre>java -jar ${maven.repo.local}/org/apache/maven/maven-artifact/${maven.version}/maven-artifact-${maven.version}.jar "1.2.7" "1.2-SNAPSHOT"</pre>
     * command to command line. Result of given command will be something like this:
     * <pre>
     * Display parameters as parsed by Maven (in canonical form) and comparison result:
     * 1. 1.2.7 == 1.2.7
     *    1.2.7 &gt; 1.2-SNAPSHOT

    // Needs to go away
    private Set<Artifact> artifactDependencies;

    private ArtifactRepository localRepository;

    private List<ArtifactRepository> remoteRepositories;

    // This is like a filter but overrides all transitive versions
    private Map managedVersionMap;

    /** result type - flat list; the default */
    private boolean asList = true;

    /** result type - dirty tree */