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#### What this PR does / why we need it:

#### Which issue(s) this PR is related to:
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import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * Tests {@link LegacyRepositorySystem}.
 *
 */
@PlexusTest
@Deprecated
class LegacyRepositorySystemTest {
    @Inject
    private LegacyRepositorySystem repositorySystem;

    @Inject
    private ResolutionErrorHandler resolutionErrorHandler;

    @Inject

   * FluentIterable} has obviated the need to explicitly convert to a {@code FluentIterable}.
   *
   * @deprecated instances of {@code FluentIterable} don't need to be converted to {@code
   *     FluentIterable}
   */
  @Deprecated
  @InlineMe(
      replacement = "checkNotNull(iterable)",
      staticImports = {"com.google.common.base.Preconditions.checkNotNull"})

    } catch (Exception e) {
      throw new IllegalArgumentException(e);
    }
  }

  /**
   * Useless constructor for a class of static utility methods.
   *
   * @deprecated Do not instantiate this utility class.
   */
  @Deprecated
  public Helpers() {}

import org.apache.maven.settings.Settings;
import org.codehaus.plexus.PlexusContainer;
import org.codehaus.plexus.component.repository.exception.ComponentLookupException;

/**
 */
@Named
@Singleton
@Deprecated
public class DefaultPluginManager implements PluginManager {

    private final PlexusContainer container;
    private final MavenPluginManager pluginManager;
    private final PluginVersionResolver pluginVersionResolver;

import org.eclipse.aether.transfer.TransferCancelledException;
import org.eclipse.aether.transfer.TransferEvent;
import org.eclipse.aether.transfer.TransferResource;

/**
 * AbstractMavenTransferListener
 */
@Deprecated
public abstract class AbstractMavenTransferListener extends AbstractTransferListener {

    private static final String ESC = "\u001B";
    private static final String ANSI_DARK_SET = ESC + "[90m";

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;

/**
 *
 *
 */
@PlexusTest
@Deprecated
class DefaultGraphConflictResolverTest {
    @Inject
    GraphConflictResolver resolver;

    MetadataGraph graph;

    MetadataGraphVertex v1;
    MetadataGraphVertex v2;
    MetadataGraphVertex v3;

import org.apache.maven.cli.transfer.FileSizeFormat.ScaleUnit;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;

@Deprecated
class FileSizeFormatTest {

    @Test
    void testNegativeSize() {
        FileSizeFormat format = new FileSizeFormat();

        long negativeSize = -100L;

            if (extClassPath != null) {
                context.logger.warn("The property '" + Constants.MAVEN_EXT_CLASS_PATH
                        + "' has been set using a JVM system property which is deprecated. "
                        + "The property can be passed as a Maven argument or in the Maven project configuration file,"
                        + "usually located at ${session.rootDirectory}/.mvn/maven.properties.");

import org.apache.maven.project.artifact.InvalidDependencyVersionException;

/**
 * Default component responsible for creation of MavenProject#dependencyArtifacts instances.
 */
@SuppressWarnings("deprecation")
@Named
public class DefaultProjectArtifactFactory implements ProjectArtifactFactory {
    private final ArtifactFactory artifactFactory;

    @Inject