* </ul>
 *
 * @author koichik
 * @see URLUtil#toCanonicalProtocol(String)
 * @see ClassTraversalUtil
 * @see ResourceTraversalUtil
 */
public abstract class TraversalUtil {

    /**
     * Do not instantiate.
     */
    protected TraversalUtil() {
    }

    /** An empty array of {@link Traverser}. */
    protected static final Traverser[] EMPTY_ARRAY = new Traverser[0];

    } catch (Exception e) {
      throw new IllegalArgumentException(e);
    }
  }

  /**
   * Useless constructor for a class of static utility methods.
   *
   * @deprecated Do not instantiate this utility class.
   */
  @Deprecated
  public Helpers() {}

        findClassesToTest(loadClassesInPackage(), SERIALIZABLE_TEST_METHOD_NAMES)) {
      if (Serializable.class.isAssignableFrom(classToTest)) {
        try {
          Object instance = tester.instantiate(classToTest);
          if (instance != null) {
            if (isEqualsDefined(classToTest)) {
              SerializableTester.reserializeAndAssert(instance);
            } else {

import java.util.NoSuchElementException;
import org.junit.Ignore;

/**
 * Tester for navigation of SortedMultisets.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

import org.codelibs.core.collection.CollectionsUtil;

/**
 * Utility class for handling generics in Java.
 *
 * @author koichik
 */
public abstract class GenericsUtil {

    /**
     * Do not instantiate.
     */
    protected GenericsUtil() {
    }

    /**
     * Returns <code>true</code> if the raw type of <code>type</code> can be assigned to <code>clazz</code>,
     * <code>false</code> otherwise.
     *

import org.codelibs.core.exception.NoSuchMethodRuntimeException;

/**
 * Utility class for {@link Class} operations.
 *
 * @author higa
 */
public abstract class ClassUtil {

    /**
     * Do not instantiate.
     */
    protected ClassUtil() {
    }

    /** Map from wrapper types to primitive types */
    protected static final Map<Class<?>, Class<?>> wrapperToPrimitiveMap = newHashMap();

 * </pre>
 *
 * @author Kimura Satoshi
 * @author higa
 * @author shinsuke
 * @see CopyOptionsUtil
 * @see CopyOptions
 */
public abstract class BeanUtil {

    /**
     * Do not instantiate.
     */
    protected BeanUtil() {
    }

    /** Default options */
    protected static final CopyOptions DEFAULT_OPTIONS = new CopyOptions();

    /**

import java.util.List;

import org.codelibs.core.message.MessageFormatter;

/**
 * Utility class for array operations.
 *
 * @author higa
 */
public abstract class ArrayUtil {

    /**
     * Do not instantiate.
     */
    protected ArrayUtil() {
    }

    /**
     * Returns an array of {@literal boolean}.
     *
     * @param elements the elements of the array
     * @return the array
     */

 * Any {@link IOException} thrown by these methods is wrapped and thrown as an {@link IORuntimeException}.
 * </p>
 *
 * @author koichik
 */
public abstract class CopyUtil {

    /**
     * Do not instantiate.
     */
    protected CopyUtil() {
    }

    /** Buffer size used for copying. */
    protected static final int DEFAULT_BUF_SIZE = 4096;

  /**
   * A helper to create a new {@code ListenableFuture} whose result is generated from a combination
   * of input futures.
   *
   * <p>See {@link #whenAllComplete} and {@link #whenAllSucceed} for how to instantiate this class.
   *
   * <p>Example:
   *
   * {@snippet :
   * final ListenableFuture<Instant> loginDateFuture =
   *     loginService.findLastLoginDate(username);