* to dump the queue into a newly allocated array of {@code String}:
   *
   * <pre>
   *     String[] y = x.toArray(new String[0]);</pre>
   *
   * <p>Note that {@code toArray(new Object[0])} is identical in function to {@code toArray()}.
   *
   * @param a the array into which the elements of the queue are to be stored, if it is big enough;

    // Depending on JDK version, either toArray() or toArray(T[]) may be called... use this class
    // rather than mocking to ensure that one of those methods is called.
    class TestArrayList<E> extends ArrayList<E> {
      boolean toArrayCalled = false;

      @Override
      public Object[] toArray() {
        toArrayCalled = true;
        return super.toArray();
      }

      @Override

                .get(stream -> stream.filter(StringUtil::isNotBlank).toArray(n -> new String[n]));
    }

    String getSupportedUploadedCssExtentions();

    default String[] getSupportedUploadedCssExtentionsAsArray() {
        return split(getSupportedUploadedCssExtentions(), ",")
                .get(stream -> stream.filter(StringUtil::isNotBlank).toArray(n -> new String[n]));
    }

    return new SafeTreeSet<>(delegate.tailSet(checkValid(fromElement), inclusive));
  }

  @Override
  public Object[] toArray() {
    return delegate.toArray();
  }

  @Override
  public <T> T[] toArray(T[] a) {
    return delegate.toArray(a);
  }

  @CanIgnoreReturnValue
  private <T> T checkValid(T t) {
    // a ClassCastException is what's supposed to happen!

    return new SafeTreeSet<>(delegate.tailSet(checkValid(fromElement), inclusive));
  }

  @Override
  public Object[] toArray() {
    return delegate.toArray();
  }

  @Override
  public <T> T[] toArray(T[] a) {
    return delegate.toArray(a);
  }

  @CanIgnoreReturnValue
  private <T> T checkValid(T t) {
    // a ClassCastException is what's supposed to happen!

                            .toArray(n -> new String[n])));
            entity.setPermissions(encodePermissions(form.permissions));
            entity.setVirtualHosts(split(form.virtualHosts, "\n")
                    .get(stream -> stream.filter(StringUtil::isNotBlank).distinct().map(String::trim).toArray(n -> new String[n])));
            return entity;
        });
    }

    /**

                            .toArray(n -> new String[n])));
            entity.setPermissions(encodePermissions(form.permissions));
            entity.setVirtualHosts(split(form.virtualHosts, "\n")
                    .get(stream -> stream.filter(StringUtil::isNotBlank).distinct().map(String::trim).toArray(n -> new String[n])));
            return entity;
        });
    }

    /**

                            .toArray(n -> new String[n])));
            entity.setPermissions(encodePermissions(form.permissions));
            entity.setVirtualHosts(split(form.virtualHosts, "\n")
                    .get(stream -> stream.filter(StringUtil::isNotBlank).distinct().map(String::trim).toArray(n -> new String[n])));
            return entity;
        });
    }

    /**

   * to dump the queue into a newly allocated array of {@code String}:
   *
   * <pre>
   *     String[] y = x.toArray(new String[0]);</pre>
   *
   * <p>Note that {@code toArray(new Object[0])} is identical in function to {@code toArray()}.
   *
   * @param a the array into which the elements of the queue are to be stored, if it is big enough;

   * to dump the queue into a newly allocated array of {@code String}:
   *
   * <pre>
   *     String[] y = x.toArray(new String[0]);</pre>
   *
   * <p>Note that {@code toArray(new Object[0])} is identical in function to {@code toArray()}.
   *
   * @param a the array into which the elements of the queue are to be stored, if it is big enough;