import java.util.concurrent.Executor;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.checkerframework.checker.nullness.qual.Nullable;

/** Emulation for AbstractFuture in GWT. */
@SuppressWarnings("nullness") // TODO(b/147136275): Remove once our checker understands & and |.

                    // We'd like to log progress and failures that may arise in the
                    // following code, but unfortunately the behavior of logging
                    // is undefined in shutdown hooks.
                    // This is because the logging code installs a shutdown hook of its
                    // own. See Cleaner class inside {@link LogManager}.
                    service.shutdown();

import com.google.common.testing.TestLogHandler;
import java.io.Closeable;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.List;
import java.util.logging.LogRecord;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link Closer}.
 *
 * @author Colin Decker
 */

import static com.google.common.base.StandardSystemProperty.JAVA_CLASS_PATH;
import static com.google.common.base.StandardSystemProperty.PATH_SEPARATOR;
import static java.util.logging.Level.WARNING;

import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.CharMatcher;
import com.google.common.base.Splitter;
import com.google.common.collect.FluentIterable;

import static java.nio.file.Files.createDirectory;
import static java.nio.file.Files.createFile;
import static java.nio.file.Files.createSymbolicLink;
import static java.nio.file.Files.createTempDirectory;
import static java.util.logging.Level.WARNING;

import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.io.Closer;
import com.google.common.io.Files;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.locks.ReentrantLock;
import java.util.logging.Level;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Base class for services that can implement {@link #startUp} and {@link #shutDown} but while in

import java.net.URLClassLoader;
import java.security.Permission;
import java.security.PermissionCollection;
import java.util.jar.Attributes;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;
import java.util.logging.Logger;
import java.util.zip.ZipEntry;
import junit.framework.TestCase;
import org.junit.Test;

/** Functional tests of {@link ClassPath}. */
public class ClassPathTest extends TestCase {

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.io.Closeable;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.ArrayDeque;
import java.util.Deque;
import java.util.logging.Level;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * A {@link Closeable} that collects {@code Closeable} resources and closes them all when it is

import java.util.concurrent.Executor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.logging.Formatter;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
import junit.framework.TestCase;

/**
 * Tests for {@link ServiceManager}.
 *
 * @author Luke Sandberg
 * @author Chris Nokleberg
 */

import com.google.common.util.concurrent.MoreExecutors;
import java.lang.reflect.Method;
import java.util.Iterator;
import java.util.Locale;
import java.util.concurrent.Executor;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Dispatches events to listeners, and provides ways for listeners to register themselves.
 *
 * <h2>Avoid EventBus</h2>
 *