return false;
        }
        final ArtifactTransferEvent other = (ArtifactTransferEvent) obj;
        if (eventType != other.eventType) {
            return false;
        }
        if (exception == null) {
            if (other.exception != null) {
                return false;
            }
        } else if (!exception.getClass().equals(other.exception.getClass())) {
            return false;
        }

            return false;
        }

        DefaultToolchain other = (DefaultToolchain) obj;

        if (!Objects.equals(type, other.type)) {
            return false;
        }

        Properties thisProvides = this.getModel().getProvides();
        Properties otherProvides = other.getModel().getProvides();

        return Objects.equals(thisProvides, otherProvides);
    }

            return true;
        }

        if (!(obj instanceof ExclusionSetFilter)) {
            return false;
        }

        ExclusionSetFilter other = (ExclusionSetFilter) obj;

        return excludes.equals(other.excludes);
    }

        // Alright, here's the justification for all the regexp wizardry below...
        //
        // Continuum and other server-like apps may need to locate the user-level and
        // global-level settings somewhere other than ${user.home} and ${maven.home},
        // respectively. Using a simple replacement of these patterns will allow them

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

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

/**
 * Thrown in case of bad artifact descriptors, version ranges or other
 * issues encountered during calculation of the dependency graph.
 *
 * @since 4.0.0
 */
@Experimental
public class DependencyCollectorException extends MavenException {
    /**
     *
     */

                            "must not be 'local'"
                                    + ", this identifier is reserved for the local repository"
                                    + ", using it for other repositories will corrupt your repository metadata.");
                }

                validateStringNotEmpty(problems, "mirrors.mirror.url", mirror.getUrl(), mirror.getId());

        if (version == null) {
            // use the local copy, or if it doesn't exist - go to the remote repo for it
            version = artifact.getBaseVersion();
        }

        // TODO also do this logging for other metadata?
        // TODO figure out way to avoid duplicated message
        if (getLogger().isDebugEnabled()) {
            if (!version.equals(artifact.getBaseVersion())) {

  on why this evaluator is bad. We need to provide either an alternative
  implementation under a different roleHint, or else replace the
  BasicComponentConfigurator.

* Other

  We may need to define a new lifecycle/phase to contextualize a mojo right
  before it's used, and reset it's state afterward. Up to now, the approach
  of most plexus components has been to avoid instance state like the plague.

import org.eclipse.aether.repository.WorkspaceReader;
import org.eclipse.aether.repository.WorkspaceRepository;

import static java.util.Objects.requireNonNull;

/**
 * A maven workspace reader that delegates to a chain of other readers, effectively aggregating their contents.
 * <p>
 * This class, while technically is not immutable, should be considered as such once set up. If not mutated, it is also

 * A {@code PathType} can identify the class-path, the module-path, the patches for a specific module,
 * or another kind of path.
 *
 * <p>One path type is handled in a special way: unlike other options,
 * the paths specified in a {@code --patch-module} Java option is effective only for a specified module.
 * This type is created by calls to {@link #patchModule(String)} and a new instance must be created for