import org.eclipse.aether.artifact.ArtifactTypeRegistry;

import static java.util.Objects.requireNonNull;

class TypeRegistryAdapter implements ArtifactTypeRegistry {
    private final TypeRegistry typeRegistry;

    TypeRegistryAdapter(TypeRegistry typeRegistry) {
        this.typeRegistry = requireNonNull(typeRegistry, "typeRegistry");
    }

    @Override
    public ArtifactType get(String typeId) {

import static java.util.Objects.requireNonNull;

public class ShellCommandRegistryHolder implements AutoCloseable {
    private final List<CommandRegistry> commandRegistries;

    public ShellCommandRegistryHolder() {
        this.commandRegistries = new ArrayList<>();
    }

    public void addCommandRegistry(CommandRegistry commandRegistry) {
        requireNonNull(commandRegistry, "commandRegistry");

      return policy == Policies.DISABLED
          ? new ReentrantLock(fair)
          // requireNonNull is safe because createNodes inserts an entry for every E.
          // (If the caller passes `null` for the `rank` parameter, this will throw, but that's OK.)
          : new CycleDetectingReentrantLock(requireNonNull(lockGraphNodes.get(rank)), fair);
    }

              0,
              size,
              (e1, e2) -> {
                // requireNonNull is safe because the first `size` elements have been filled in.
                requireNonNull(e1);
                requireNonNull(e2);
                return comparator.compare(e1.getKey(), e2.getKey());
              });
          // requireNonNull is safe because the first `size` elements have been filled in.

        out.append(format.normalizeFirstWord(s.substring(i, j)));
      } else {
        requireNonNull(out).append(format.normalizeWord(s.substring(i, j)));
      }
      out.append(format.wordSeparator);
      i = j + wordSeparator.length();
    }
    return (i == 0)
        ? format.normalizeFirstWord(s)
        : requireNonNull(out).append(format.normalizeWord(s.substring(i))).toString();
  }

  /**

    if (effectiveRange.isEmpty()) {
      empty = true;
    } else {
      /*
       * requireNonNull is safe because the effectiveRange operations above would have thrown or
       * effectiveRange.isEmpty() would have returned true.
       */
      C afterLower = requireNonNull(range.lowerBound.leastValueAbove(domain));
      C beforeUpper = requireNonNull(range.upperBound.greatestValueBelow(domain));

      /*
       * The following requireNonNull calls are safe because we use jlaStackTrace() only if
       * lazyStackTraceIsLazy() returns true.
       */
      @Override
      public StackTraceElement get(int n) {
        return (StackTraceElement)
            invokeAccessibleNonThrowingMethod(
                requireNonNull(getStackTraceElementMethod), requireNonNull(jla), t, n);
      }

      @Override

import java.util.function.Supplier;

import org.apache.maven.api.plugin.Log;
import org.slf4j.Logger;

import static java.util.Objects.requireNonNull;

public class DefaultLog implements Log {
    private final Logger logger;

    public DefaultLog(Logger logger) {
        this.logger = requireNonNull(logger);
    }

    @Override
    public void debug(CharSequence content) {
        if (isDebugEnabled()) {

            final ExecutorService threadPool) {
        this.client = Objects.requireNonNull(client, "client must not be null");
        suggestSettings = Objects.requireNonNull(settings, "settings must not be null");
        this.readingConverter = Objects.requireNonNull(readingConverter, "readingConverter must not be null");
        this.contentsReadingConverter = Objects.requireNonNull(contentsReadingConverter, "contentsReadingConverter must not be null");

import org.apache.maven.artifact.handler.DefaultArtifactHandler;
import org.apache.maven.eventspy.AbstractEventSpy;
import org.apache.maven.execution.ExecutionEvent;

import static java.util.Objects.requireNonNull;

/**
 */
@Named
@Singleton
public class DefaultArtifactHandlerManager extends AbstractEventSpy implements ArtifactHandlerManager {
    private final TypeRegistry typeRegistry;