if (!initialized) {
                DisposableUtil.add(BeanDescFactory::clear);
                initialized = true;
            }
        }
    }

    /**
     * キャッシュをクリアします。
     */
    public static void clear() {
        beanDescCache.clear();
        initialized = false;
    }

    }

    /**
     * 初期化します。
     */
    protected static synchronized void initialize() {
        if (!initialized) {
            DisposableUtil.add(() -> {
                ResourceBundle.clearCache();
                initialized = false;
            });
            initialized = true;
        }
    }

      // A 2-field variant of Double Checked Locking.
      if (!initialized) {
        synchronized (this) {
          if (!initialized) {
            T t = delegate.get();
            value = t;
            initialized = true;
            return t;
          }
        }
      }
      // This is safe because we checked `initialized`.
      return uncheckedCastNullableTToT(value);
    }

    @Override

        DisposableUtil.dispose();
        assertThat(MessageFormatter.initialized, is(not(true)));

        MessageFormatter.getMessage("EMSG0000");
        assertThat(MessageFormatter.initialized, is(true));

        DisposableUtil.dispose();
        assertThat(MessageFormatter.initialized, is(not(true)));
    }

        }
    }

    /**
     * {@link Logger}を初期化します。
     */
    protected static synchronized void initialize() {
        DisposableUtil.addFirst(() -> {
            initialized = false;
            loggers.clear();
            factory.releaseAll();
        });
        initialized = true;
    }

    /**
     * ログアダプタのファクトリを返します。
     * <p>

 * so.
 */
@GwtIncompatible
@ElementTypesAreNonnullByDefault
abstract class Striped64 extends Number {
  /*
   * This class maintains a lazily-initialized table of atomically
   * updated variables, plus an extra "base" field. The table size
   * is a power of two. Indexing uses masked per-thread hash codes.
   * Nearly all declarations in this class are package-private,

public class SpnegoAuthenticator implements SsoAuthenticator {

    private static final Logger logger = LogManager.getLogger(SpnegoAuthenticator.class);

    protected static final String SPNEGO_INITIALIZED = "spnego.initialized";
    protected static final String SPNEGO_EXCLUDE_DIRS = "spnego.exclude.dirs";
    protected static final String SPNEGO_ALLOW_DELEGATION = "spnego.allow.delegation";

     * The path separator.
     */
    private static final String PATH_SEP = System.getProperty("path.separator");

    static {
        // Those two public constants are initialized here, as they need all the private constants
        // above to be initialized first, but the code style imposes the public constants to be
        // defined above the private ones...
        OS_FAMILY = getOsFamily();

import org.codehaus.plexus.component.repository.exception.ComponentRepositoryException;
import org.codehaus.plexus.configuration.PlexusConfigurationException;

/**
 * Exception which occurs to indicate that the plugin cannot be initialized due
 * to some deeper problem with Plexus. Context information includes the groupId,
 * artifactId, and version for the plugin; at times, the goal name for which

 * so.
 */
@GwtIncompatible
@ElementTypesAreNonnullByDefault
abstract class Striped64 extends Number {
  /*
   * This class maintains a lazily-initialized table of atomically
   * updated variables, plus an extra "base" field. The table size
   * is a power of two. Indexing uses masked per-thread hash codes.
   * Nearly all declarations in this class are package-private,