/**
     * Returns the Maven command to be executed. This command is used in some invokers (ie forked) but also to
     * present help to user.
     *
     * @return the command string
     */
    @Nonnull
    String command();

    /**
     * Returns the Maven command name (ie "Maven"). This string is used in some invokers to complete error messages.
     *
     * @return the command (human) name
     */

import org.apache.maven.cling.invoker.LookupContext;
import org.apache.maven.cling.invoker.mvn.MavenInvoker;
import org.apache.maven.cling.invoker.mvn.MavenParser;
import org.apache.maven.cling.invoker.mvnenc.EncryptInvoker;
import org.apache.maven.cling.invoker.mvnenc.EncryptParser;
import org.apache.maven.cling.invoker.mvnenc.Goal;
import org.apache.maven.cling.invoker.mvnsh.ShellCommandRegistryFactory;

import static org.apache.maven.cling.invoker.CliUtils.toMavenExecutionRequestLoggingLevel;
import static org.apache.maven.cling.invoker.CliUtils.toProperties;

/**
 * Lookup invoker implementation, that boots up DI container.
 *
 * @param <C> The context type.
 */
public abstract class LookupInvoker<C extends LookupContext> implements Invoker {
    protected final Lookup protoLookup;

    @Nullable

 * @since 10.0
 */
@GwtCompatible
public final class Uninterruptibles {

  // Implementation Note: As of 3-7-11, the logic for each blocking/timeout
  // methods is identical, save for method being invoked.

  /** Invokes {@code latch.}{@link CountDownLatch#await() await()} uninterruptibly. */
  @J2ktIncompatible
  @GwtIncompatible // concurrency
  public static void awaitUninterruptibly(CountDownLatch latch) {

     * @see Method#invoke(Object, Object[])
     */
    @SuppressWarnings("unchecked")
    public static <T> T invoke(final Method method, final Object target, final Object... args)
            throws InvocationTargetRuntimeException, IllegalAccessRuntimeException {
        assertArgumentNotNull("method", method);

        try {
            return (T) method.invoke(target, args);

import org.apache.maven.api.toolchain.PersistedToolchains;
import org.apache.maven.cling.event.ExecutionEventLogger;
import org.apache.maven.cling.invoker.CliUtils;
import org.apache.maven.cling.invoker.LookupContext;
import org.apache.maven.cling.invoker.LookupInvoker;
import org.apache.maven.cling.transfer.ConsoleMavenTransferListener;
import org.apache.maven.cling.transfer.QuietMavenTransferListener;

   * <p>This method should return promptly; prefer to do work on a different thread where it is
   * convenient. It is invoked exactly once on service shutdown, even when {@link #stopAsync} is
   * called multiple times.
   *
   * <p>If {@link #stopAsync} is called on a {@link State#STARTING} service, this method is not
   * invoked immediately. Instead, it will be deferred until after the service is {@link

        public String toString() {
          throw new AssertionFailedError();
        }
      };

  private static class Message {
    boolean invoked;

    @Override
    public String toString() {
      assertFalse(invoked);
      invoked = true;
      return "A message";
    }
  }

  private static final String FORMAT = "I ate %s pies.";

   * <p>This method should return promptly; prefer to do work on a different thread where it is
   * convenient. It is invoked exactly once on service shutdown, even when {@link #stopAsync} is
   * called multiple times.
   *
   * <p>If {@link #stopAsync} is called on a {@link State#STARTING} service, this method is not
   * invoked immediately. Instead, it will be deferred until after the service is {@link

 * {@link FinalizableReference#finalizeReferent()} on them. Java 9+ users should prefer {@link
 * java.lang.ref.Cleaner Cleaner}; see example <a href="#cleaner">below</a>.
 *
 * <p>Keep a strong reference to this object until all of the associated referents have been
 * finalized. If this object is garbage collected earlier, the backing thread will not invoke {@code