*/
  public boolean isRunning() {
    return isRunning;
  }

  /**
   * Starts the stopwatch.
   *
   * @return this {@code Stopwatch} instance
   * @throws IllegalStateException if the stopwatch is already running.
   */
  @CanIgnoreReturnValue
  public Stopwatch start() {
    checkState(!isRunning, "This stopwatch is already running.");

 */
@GwtCompatible
public final class Throwables {
  private Throwables() {}

  /**
   * Throws {@code throwable} if it is an instance of {@code declaredType}. Example usage:
   *
   * <pre>
   * for (Foo foo : foos) {
   *   try {
   *     foo.bar();
   *   } catch (BarException | RuntimeException | Error t) {
   *     failure = t;
   *   }
   * }
   * if (failure != null) {

import org.codehaus.plexus.interpolation.QueryEnabledValueSource;

/**
 * Wraps an arbitrary object with an {@link ObjectBasedValueSource} instance, then
 * wraps that source with a {@link PrefixedValueSourceWrapper} instance, to which
 * this class delegates all of its calls.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")

    private static Method makeAccessible(Method method) {
        method.setAccessible(true);
        return method;
    }

    private static <T> T invoke(Method method, Object instance, Object... args) {
        try {
            Object result = method.invoke(instance, args);
            @SuppressWarnings("unchecked")
            T cast = (T) result;
            return cast;
        } catch (IllegalAccessException | InvocationTargetException e) {

	<component name="facetInfo" class="org.codelibs.fess.entity.FacetInfo">
	</component>
	<component name="gsaConfigParser" class="org.codelibs.fess.util.GsaConfigParser" instance="prototype">
	</component>
	<component name="queryStringBuilder" class="org.codelibs.fess.util.QueryStringBuilder" instance="prototype">
	</component>
	<component name="queryParser" class="org.codelibs.fess.query.parser.QueryParser">
	</component>

    }

    /**
     * Gets the query field configuration.
     * @return The query field configuration instance.
     */
    protected QueryFieldConfig getQueryFieldConfig() {
        return ComponentUtil.getQueryFieldConfig();
    }

    /**
     * Gets the query processor instance.
     * @return The query processor instance.
     */
    protected QueryProcessor getQueryProcessor() {

  }

  private <T> T pickInstance(T[] instances, T defaultValue) {
    return pickInstance(Arrays.asList(instances), defaultValue);
  }

  private <T> T pickInstance(Collection<T> instances, T defaultValue) {
    if (instances.isEmpty()) {
      return defaultValue;
    }
    // generateInt() is 1-based.
    return Iterables.get(instances, (generateInt() - 1) % instances.size());
  }

            // Both non-null - should be same instance
            assertSame(first, second, "Second getSubject should return same cached instance as first");
        } else {
            fail("Inconsistent behavior: first=" + first + ", second=" + second);
        }

        // Third call should return the same cached Subject instance
        Subject third = auth.getSubject();

        // do nothing
    }

    /**
     * Invoked after MavenSession instance has been created.
     *
     * This callback is intended to allow extensions to inject execution properties,
     * activate profiles and perform similar tasks that affect MavenProject
     * instance construction.
     *
     * @param session the Maven session
     * @throws MavenExecutionException in case of issue

 */
@Immutable
abstract class AbstractHashFunction implements HashFunction {
  @Override
  public <T extends @Nullable Object> HashCode hashObject(
      @ParametricNullness T instance, Funnel<? super T> funnel) {
    return newHasher().putObject(instance, funnel).hash();
  }

  @Override
  public HashCode hashUnencodedChars(CharSequence input) {
    int len = input.length();