import java.io.IOException;
import java.util.function.Supplier;

/**
 * An interface that uses Java 8 source features.
 */
public interface Java8Interface extends CombinedInterface, JavaInterface {
    default String getName() {
        try (Writer writer = new StringWriter()) {
            Supplier<String> methodReference = this::toString;
            Supplier<String> lambda = () -> this.toString();

package com.google.common.hash;

import com.google.common.base.Supplier;
import com.google.errorprone.annotations.Immutable;

/**
 * Explicitly named subinterface of {@link Supplier} that can be marked {@literal @}{@link
 * Immutable}.
 */
// TODO(cpovirk): Should we just use ChecksumType directly instead of defining this type?
@Immutable

        return cache.get(key);
    }

    @Override
    public CacheRecord get(Key key, PluginRealmSupplier supplier)
            throws PluginResolutionException, PluginContainerException {
        try {
            return cache.computeIfAbsent(key, k -> {
                try {
                    return supplier.load();
                } catch (PluginResolutionException | PluginContainerException e) {

  @Override
  public Optional<T> or(Optional<? extends T> secondChoice) {
    return (Optional<T>) checkNotNull(secondChoice);
  }

  @Override
  public T or(Supplier<? extends T> supplier) {
    return checkNotNull(
        supplier.get(), "use Optional.orNull() instead of a Supplier that returns null");
  }

  @Override
  public @Nullable T orNull() {
    return null;
  }

  @Override
  public Set<T> asSet() {

 */
package org.codelibs.fess.app.web.base.login;

import java.util.function.Supplier;

import org.lastaflute.web.login.credential.LoginCredential;
import org.lastaflute.web.response.ActionResponse;

/**
 * The credential for action response.
 */
public class ActionResponseCredential implements LoginCredential {

    private final Supplier<ActionResponse> action;

    /**
     * Constructor.

    @Nullable Object get() throws Throwable;
  }

  @CanIgnoreReturnValue
  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingSupplier supplier) {
    return doAssertThrows(expectedThrowable, supplier, /* userPassedSupplier= */ true);
  }

  @CanIgnoreReturnValue
  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingRunnable runnable) {

    @Nullable Object get() throws Throwable;
  }

  @CanIgnoreReturnValue
  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingSupplier supplier) {
    return doAssertThrows(expectedThrowable, supplier, /* userPassedSupplier= */ true);
  }

  @CanIgnoreReturnValue
  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingRunnable runnable) {

    @Nullable Object get() throws Throwable;
  }

  @CanIgnoreReturnValue
  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingSupplier supplier) {
    return doAssertThrows(expectedThrowable, supplier, /* userPassedSupplier= */ true);
  }

  @CanIgnoreReturnValue
  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingRunnable runnable) {

    static Stream<Arguments> implementations() {
        return Stream.of(Arguments.of("returns self", (Supplier<SmbRenewableCredentials>) SelfRenewingCreds::new, true, false),
                Arguments.of("returns new", (Supplier<SmbRenewableCredentials>) NewRenewingCreds::new, false, true),
                Arguments.of("returns null", (Supplier<SmbRenewableCredentials>) NullRenewingCreds::new, false, false));
    }

package com.google.common.hash;

import com.google.common.base.Supplier;
import java.util.concurrent.atomic.AtomicLong;

/**
 * Source of {@link LongAddable} objects that deals with GWT, Unsafe, and all that.
 *
 * @author Louis Wasserman
 */
final class LongAddables {
  private static final Supplier<LongAddable> SUPPLIER;

  static {
    Supplier<LongAddable> supplier;
    try {