import java.util.Map;

/**
 * Class InputLocation.
 */
public class InputLocation implements Serializable, InputLocationTracker {
    private final int lineNumber;
    private final int columnNumber;
    private final InputSource source;
    private final Map<Object, InputLocation> locations;

    public InputLocation(InputSource source) {
        this.lineNumber = -1;
        this.columnNumber = -1;

      If deciding to add mutable state to this class, it should be at least considered to
      separate this into a separate mutable structure.

    */

    private final List<ExecutionPlanItem> planItem;

    private final Map<String, ExecutionPlanItem> lastMojoExecutionForAllPhases;

    final List<String> phasesInExecutionPlan;

import java.util.AbstractSet;
import java.util.Iterator;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;

class PropertiesAsMap extends AbstractMap<String, String> {

    private final Map<Object, Object> properties;

    PropertiesAsMap(Map<Object, Object> properties) {
        this.properties = properties;
    }

    @Override
    public Set<Entry<String, String>> entrySet() {

/**
 * A wrapper class around a maven resolver artifact.
 */
public class DefaultArtifact implements Artifact {
    private final @Nonnull InternalSession session;
    private final @Nonnull org.eclipse.aether.artifact.Artifact artifact;
    private final String key;

    public DefaultArtifact(@Nonnull InternalSession session, @Nonnull org.eclipse.aether.artifact.Artifact artifact) {

    /**
     * Name of the file to use as a sentinel value for deciding if a directory or a JAR is modular.
     */
    private static final String MODULE_INFO = "module-info.class";

    /**
     * The attribute for automatic module name in {@code META-INF/MANIFEST.MF} files.
     */
    private static final Attributes.Name AUTO_MODULE_NAME = new Attributes.Name("Automatic-Module-Name");

    /**

        "1-1",
        "1-2",
        "1-123"
    };

    private static final String[] VERSIONS_NUMBER = {
        "2.0", "2.0.a", "2-1", "2.0.2", "2.0.123", "2.1.0", "2.1-a", "2.1b", "2.1-c", "2.1-1", "2.1.0.1", "2.2",
        "2.123", "11.a2", "11.a11", "11.b2", "11.b11", "11.m2", "11.m11", "11", "11.a", "11b", "11c", "11m"
    };

    private void checkVersionsOrder(String[] versions) {

                        "Edge between '" + from + "' and '" + to + "' introduces to cycle in the graph", cycle);
            }
        }
    }

    private enum DfsState {
        VISITING,
        VISITED
    }

    private static List<String> visitCycle(
            Map<String, Set<String>> graph,
            Collection<String> children,
            Map<String, DfsState> stateMap,

                    session, globalToolchainsSource, userToolchainsSource);
        }

        private static class DefaultToolchainsBuilderRequest extends BaseRequest implements ToolchainsBuilderRequest {
            private final Source globalToolchainsSource;
            private final Source userToolchainsSource;

            @SuppressWarnings("checkstyle:ParameterNumber")

}; public static final String DEFAULT_ESCAPE_SEQ = \; private static final char CARRIAGE_RETURN_CHAR = 13; private static final char NEWLINE_CHAR = 10; private final java.io.PushbackReader pushbackReader; private final java.util.Map context; private final String startDelim; private final String endDelim; private final String escapeSeq; private final int minExpressionSize; private final reflection.Reflector reflector; private int lineIdx; private String line; public void LineOrientedInterpol(java.io.Reader,...

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.project;

import java.util.*;

class Graph {
    private enum DfsState {
        VISITING,
        VISITED
    }

    final Map<String, Vertex> vertices = new LinkedHashMap<>();

    public Vertex getVertex(String id) {
        return vertices.get(id);
    }