/** The key of the message: {item} may not be null. */
    public static final String CONSTRAINTS_NotNull_MESSAGE = "{constraints.NotNull.message}";

    /** The key of the message: {item} must be null. */
    public static final String CONSTRAINTS_Null_MESSAGE = "{constraints.Null.message}";

    /** The key of the message: {item} must be in the past. */

     * メッセージオブジェクトの文字列表現を返します。
     *
     * @param message
     *            メッセージオブジェクト
     * @return メッセージオブジェクトの文字列表現
     */
    protected static String toString(final Object message) {
        if (message == null) {
            return "null";
        }
        if (message instanceof String) {
            return (String) message;
        }
        return message.toString();
    }

    /**

        logger.error(message, t);
    }

    @Override
    public boolean isWarnEnabled() {
        return logger.isWarnEnabled();
    }

    @Override
    public void warn(final String message) {
        logger.warn(message);
    }

    @Override
    public void warn(final String message, final Throwable t) {
        logger.warn(message, t);
    }

        this.messageCode = messageCode;
    }

    public InvalidQueryException(final VaMessenger<FessMessages> messageCode, final String message) {
        super(message);
        this.messageCode = messageCode;
    }

    /**
     * @return the messageCode
     */
    public VaMessenger<FessMessages> getMessageCode() {
        return messageCode;
    }

            MojoDescriptor mojoDescriptor, ClassRealm pluginRealm, String message, Throwable e) {
        super(mojoDescriptor, message, e);

        this.pluginRealm = pluginRealm;
    }

    public PluginContainerException(
            MojoDescriptor mojoDescriptor, ClassRealm pluginRealm, String message, ComponentLookupException e) {
        super(mojoDescriptor, message, e);

        this.pluginRealm = pluginRealm;
    }

    }

    /**
     * @param message a message
     * @param cause a cause
     * @deprecated use {@link #ArtifactMetadataRetrievalException(String, Throwable, Artifact)}
     */
    @Deprecated
    public ArtifactMetadataRetrievalException(String message, Throwable cause) {
        super(message, cause, null);
    }

    public ArtifactMetadataRetrievalException(String message, Throwable cause, Artifact artifact) {

     * @param cause The cause of the problem, may be {@code null}.
     */
    void add(Problem.Severity severity, String message, int line, int column, Exception cause);

    /**
     * The next messages will be bound to this source. When calling this method again, previous messages keep
     * their source, but the next messages will use the new source.
     *
     * @param source a source
     */
    void setSource(String source);

  }

  private void expectReturnsTrue(Target target) {
    String message = Platform.format("retainAll(%s) should return true", target);
    assertTrue(message, collection.retainAll(target.toRetain));
  }

  private void expectReturnsFalse(Target target) {
    String message = Platform.format("retainAll(%s) should return false", target);
    assertFalse(message, collection.retainAll(target.toRetain));
  }

 */
@Experimental
public class LookupException extends MavenException {

    public LookupException(String message) {
        super(message);
    }

    /**
     * @param message the message to give
     * @param e the {@link Exception}
     */
    public LookupException(String message, Exception e) {
        super(message, e);
    }

    /**
     * @param e the {@link Exception}
     */

    if (localInputFuture != null) {
      String message = "inputFuture=[" + localInputFuture + "]";
      if (localTimer != null) {
        long delay = localTimer.getDelay(TimeUnit.MILLISECONDS);
        // Negative delays look confusing in an error message
        if (delay > 0) {
          message += ", remaining delay=[" + delay + " ms]";
        }
      }
      return message;
    }
    return null;
  }