return doGet(userProperties != null ? userProperties.get(key) : null, def);
    }

    private static boolean doGet(Object val, boolean def) {
        if (val instanceof Boolean bool) {
            return bool;
        } else if (val != null) {
            return Boolean.parseBoolean(val.toString());
        } else {
            return def;
        }
    }

 * is an immutable <i>supplier</i> of {@code OutputStream} instances.
 *
 * <p>{@code ByteSink} provides two kinds of methods:
 *
 * <ul>
 *   <li><b>Methods that return a stream:</b> These methods should return a <i>new</i>, independent
 *       instance each time they are called. The caller is responsible for ensuring that the
 *       returned stream is closed.

 * is an immutable <i>supplier</i> of {@code OutputStream} instances.
 *
 * <p>{@code ByteSink} provides two kinds of methods:
 *
 * <ul>
 *   <li><b>Methods that return a stream:</b> These methods should return a <i>new</i>, independent
 *       instance each time they are called. The caller is responsible for ensuring that the
 *       returned stream is closed.

    return ordering.compare(function.apply(left), function.apply(right));
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object == this) {
      return true;
    }
    if (object instanceof ByFunctionOrdering) {
      ByFunctionOrdering<?, ?> that = (ByFunctionOrdering<?, ?>) object;
      return this.function.equals(that.function) && this.ordering.equals(that.ordering);
    }
    return false;
  }

  protected int doHash(F a) {
    return resultEquivalence.hash(function.apply(a));
  }

  @Override
  public boolean equals(@Nullable Object obj) {
    if (obj == this) {
      return true;
    }
    if (obj instanceof FunctionalEquivalence) {
      FunctionalEquivalence<?, ?> that = (FunctionalEquivalence<?, ?>) obj;
      return function.equals(that.function) && resultEquivalence.equals(that.resultEquivalence);
    }
    return false;

     * Returns the <code>SQL</code>.
     *
     * @param cause the underlying exception
     * @return the <code>SQL</code>
     */
    protected static String getSql(final SQLException cause) {
        if (cause instanceof ClSQLException) {
            return ((ClSQLException) cause).getSql();
        }
        return "";
    }

    /**
     * Returns the real message.
     *
     * @param cause the underlying exception

    ContiguousSet<Integer> empty = ContiguousSet.create(Range.closedOpen(1, 1), integers());
    assertTrue(empty instanceof EmptyContiguousSet);
    reserializeAndAssert(empty);

    ContiguousSet<Integer> regular = ContiguousSet.create(Range.closed(1, 3), integers());
    assertTrue(regular instanceof RegularContiguousSet);
    reserializeAndAssert(regular);

    /*

        return "unknown";
    }

    private long extractNtStatus(Throwable cause) {
        if (cause instanceof SmbException) {
            return ((SmbException) cause).getNtStatus();
        }
        return 0;
    }

    private String extractServerMessage(Throwable cause) {
        if (cause instanceof SmbException) {
            // Try to get server message from SMB exception
            return cause.getMessage();

    public void deleteSearchLog(final Object e) {
        if (e instanceof final ClickLog clickLog) {
            clickLogBhv.delete(clickLog);
        } else if (e instanceof final FavoriteLog favoriteLog) {
            favoriteLogBhv.delete(favoriteLog);
        } else if (e instanceof final UserInfo userInfo) {
            userInfoBhv.delete(userInfo);
        } else if (e instanceof final SearchLog searchLog) {

        IOException ioe = se;
        Throwable root = se.getRootCause();
        if (root instanceof TransportException) {
            ioe = (TransportException) root;
            root = ((TransportException) ioe).getRootCause();
        }
        if (root instanceof InterruptedException) {
            ioe = new InterruptedIOException(root.getMessage());
            ioe.initCause(root);
        }