/**
     *
     */
    public String abc_exclude = "exclude";

    /**
     *
     */
    public String ab = "ab";

    The summary is that it ignores one file in favor of the other.
    util.concurrent, like nearly all our packages, has two .gwt.xml files: one
    for prod and one for tests. However, unlike our other packages, as of this
    writing it has test supersource but no prod supersource.

    GWT happens to use the prod .gwt.xml, so it looks for no supersource for
    tests, either. This causes it to fail to find AtomicLongMapTest.

    The summary is that it ignores one file in favor of the other.
    util.concurrent, like nearly all our packages, has two .gwt.xml files: one
    for prod and one for tests. However, unlike our other packages, as of this
    writing it has test supersource but no prod supersource.

    GWT happens to use the prod .gwt.xml, so it looks for no supersource for
    tests, either. This causes it to fail to find AtomicLongMapTest.

        @SuppressWarnings("unchecked")
        final Tuple4<T1, T2, T3, T4> other = (Tuple4<T1, T2, T3, T4>) obj;
        if (value1 == null) {
            if (other.value1 != null) {
                return false;
            }
        } else if (!value1.equals(other.value1)) {
            return false;
        }
        if (value2 == null) {
            if (other.value2 != null) {
                return false;
            }

    try {
      executor.execute(runnable);
    } catch (Exception e) { // sneaky checked exception
      // Log it and keep going -- bad runnable and/or executor. Don't punish the other runnables if
      // we're given a bad one. We only catch Exception because we want Errors to propagate up.
      log.get()
          .log(
              Level.SEVERE,

        final Tuple5<T1, T2, T3, T4, T5> other = (Tuple5<T1, T2, T3, T4, T5>) obj;
        if (value1 == null) {
            if (other.value1 != null) {
                return false;
            }
        } else if (!value1.equals(other.value1)) {
            return false;
        }
        if (value2 == null) {
            if (other.value2 != null) {
                return false;
            }

        }
        @SuppressWarnings("unchecked")
        final Pair<T1, T2> other = (Pair<T1, T2>) obj;
        if (first == null) {
            if (other.first != null) {
                return false;
            }
        } else if (!first.equals(other.first)) {
            return false;
        }
        if (second == null) {
            if (other.second != null) {
                return false;
            }

  }

  /**
   * Writes `other` into this. If any setting is populated by this and `other`, the
   * value and flags from `other` will be kept.
   */
  fun merge(other: Settings) {
    for (i in 0 until COUNT) {
      if (!other.isSet(i)) continue
      set(i, other[i])
    }
  }

  companion object {
    /**

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

================================================================

aead.dev/minisign
https://aead.dev/minisign

   * use {@link String#isEmpty()} instead of this method, and you won't need special null-safe forms
   * of methods like {@link String#toUpperCase} either. Or, if you'd like to normalize "in the other
   * direction," converting empty strings to {@code null}, you can use {@link #emptyToNull}.
   *
   * @param string a string reference to check