echo "The java(1) command does not exist in PATH nor is JAVA_HOME set, so Apache Maven cannot be started." >&2
    exit 1
  fi
fi

# traverses directory structure from process work directory to filesystem root
# first directory with .mvn subdirectory is considered project base directory
find_maven_basedir() {
(
  basedir=`find_file_argument_basedir "$@"`
  wdir="$basedir"
  while [ "$wdir" != '/' ] ; do

  * The file wagon, provided the referenced location is on a local
    filesystem.

    It is not possible to determine whether a file-based location will
    be available except on a case-by-case basis (or a root-url by
    root-url basis). We may want to move the offline sensitivity entirely to
    Maven-Artifact, below, so we can be smarter about testing filesystem-based
    repositories, etc.

import org.apache.maven.model.Model;
import org.apache.maven.model.building.DefaultModelBuildingRequest;
import org.apache.maven.model.interpolation.reflection.IntrospectionException;
import org.apache.maven.model.root.RootLocator;
import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.apache.maven.project.CycleDetectedException;

        this(tree, false, false);
    }
    // ------------------------------------------------------------------------
    /**
     * construct graph from a "dirty" tree
     *
     * @param tree "dirty" tree root
     * @param versionedVertices true if graph nodes should be versioned (different versions -> different nodes)
     * @param scopedVertices true if graph nodes should be versioned and scoped

      <name>PersistedToolchains</name>
      <superClass>TrackableBase</superClass>
      <description>
        The {@code &lt;toolchains&gt;} element is the root of the descriptor.
        The following table lists all the possible child elements.
      </description>
      <version>1.0.0+</version>
      <fields>
        <field>
          <name>toolchains</name>

                    .filter(MavenProject::isExecutionRoot)
                    .findFirst()
                    .orElseThrow(() -> new IllegalStateException("No project in the session is execution root"));

            buildResumptionAnalyzer.determineBuildResumptionData(result).ifPresent(resumption -> {
                try {
                    buildResumptionDataRepository.persistResumptionData(rootProject, resumption);

.Map); public Object getValue(String); } org/codehaus/plexus/util/interpolation/ObjectBasedValueSour.class package org.codehaus.plexus.util.interpolation; public synchronized class ObjectBasedValueSour implements ValueSource { private final Object root; public void ObjectBasedValueSour(Object); public Object getValue(String); } org/codehaus/plexus/util/interpolation/RegexBasedInterpolat.class package org.codehaus.plexus.util.interpolation; public synchronized class RegexBasedInterpolat { private...

 * or a {@code pom.xml} containing the {@code root="true"} attribute.
 */
public interface RootLocator {

    String UNABLE_TO_FIND_ROOT_PROJECT_MESSAGE = "Unable to find the root directory. "
            + "Create a .mvn directory in the root directory or add the root=\"true\""
            + " attribute on the root project's model to identify it.";

    @Nonnull

        this.treeRoot = root;
    }
    // ----------------------------------------------------------------------------
    public MetadataTreeNode getTree() {
        return treeRoot;
    }
    // ----------------------------------------------------------------------------
    public void setTree(MetadataTreeNode root) {
        this.treeRoot = root;
    }

    /**
     * Gets the root directory of the project, which is the parent directory
     * containing the {@code .mvn} directory or flagged with {@code root="true"}.
     *
     * @throws IllegalStateException if the root directory could not be found
     * @see Session#getRootDirectory()
     */
    @Nonnull
    Path getRootDirectory();

    /**
     * Returns project parent project, if any.
     */