import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**
 * Base implementation for API managers providing common functionality.
 * Abstract class that provides format detection and response handling for web APIs.
 */
public abstract class BaseApiManager implements WebApiManager {

    private static final String API_FORMAT_TYPE = "apiFormatType";

    /** Path prefix for API endpoints. */

import org.jspecify.annotations.NullMarked;

/**
 * Generates {@code List<Character>} instances for test suites.
 *
 * @author Kevin Bourrillion
 * @author Louis Wasserman
 */
@GwtCompatible
@NullMarked
public abstract class TestCharacterListGenerator implements TestListGenerator<Character> {
  @Override
  public SampleElements<Character> samples() {
    return new Chars();
  }

  @Override

@DisableCachingByDefault(because = "Depends on GitHub API")
abstract class AbstractCheckOrUpdateContributorsInReleaseNotes : DefaultTask() {
    @get: Internal
    abstract val releaseNotes: RegularFileProperty

    @get: Option(option = "milestone", description = "The milestone prefix to check for contributors, i.e. '7.5' includes PRs with '7.5', '7.5 RC1', '7.5.1'")
    @get: Internal
    abstract val milestone: Property<String>

    @get: Internal

import java.util.Map.Entry;
import org.jspecify.annotations.NullMarked;

/**
 * A skeleton generator for a {@code SetMultimap} implementation.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@NullMarked
public abstract class TestStringSetMultimapGenerator
    implements TestSetMultimapGenerator<String, String> {

  @Override
  public SampleElements<Entry<String, String>> samples() {
    return new SampleElements<>(

import org.codelibs.fess.mylasta.action.FessUserBean;
import org.dbflute.optional.OptionalThing;

/**
 * Abstract base class for rank fusion searchers in the Fess search system.
 * Rank fusion searchers are responsible for executing search queries and
 * can be combined to implement advanced ranking strategies.
 */
public abstract class RankFusionSearcher {
    /** The name of this searcher, lazily initialized. */
    protected String name;

  }

  // This declaration is needed to make Set.iterator() and
  // ImmutableCollection.iterator() appear consistent to javac's type inference.
  @Override
  public abstract UnmodifiableIterator<E> iterator();

  abstract static class CachingAsList<E> extends ImmutableSet<E> {
    @LazyInit private transient ImmutableList<E> asList;

    @Override
    public ImmutableList<E> asList() {

   * cases.
   */
  protected abstract ListenableFuture<T> buildChainingFuture(ListenableFuture<Integer> inputFuture);

  /**
   * Override to return the result when VALID_INPUT_DATA is passed in to the chaining
   * listenableFuture
   */
  protected abstract T getSuccessfulResult();

package jcifs.ntlmssp;

import java.io.IOException;

import jcifs.SmbConstants;

/**
 * Abstract superclass for all NTLMSSP messages.
 */
public abstract class NtlmMessage implements NtlmFlags {

    /**
     * Default constructor.
     */
    protected NtlmMessage() {
        // Protected constructor for abstract class
    }

    /**
     * The NTLMSSP "preamble".
     */

/**
 * Skeletal implementation of {@link NavigableMap}.
 *
 * @author Louis Wasserman
 */
@GwtIncompatible
abstract class AbstractNavigableMap<K extends @Nullable Object, V extends @Nullable Object>
    extends IteratorBasedAbstractMap<K, V> implements NavigableMap<K, V> {

  @Override
  public abstract @Nullable V get(@Nullable Object key);

  @Override
  public @Nullable Entry<K, V> firstEntry() {

 */

/**
 * An abstract class for NTLM authentication.
 * Provides a callback mechanism for retrieving user credentials when authentication is required.
 */
public abstract class NtlmAuthenticator {

    /**
     * Default constructor.
     */
    protected NtlmAuthenticator() {
        // Protected constructor for abstract class
    }

    private static NtlmAuthenticator auth;