}

  /**
   * Used by tests that require a map, but don't care whether it's populated or not.
   *
   * @return a new map instance.
   */
  protected Map<K, V> makeEitherMap() {
    try {
      return makePopulatedMap();
    } catch (UnsupportedOperationException e) {
      return makeEmptyMap();
    }
  }

  @SuppressWarnings("CatchingUnchecked") // sneaky checked exception

  @JsMethod
  static native boolean stringIsNullOrEmpty(@Nullable String string) /*-{
    return !string;
  }-*/;

  @JsMethod
  static native String nullToEmpty(@Nullable String string) /*-{
    return string || "";
  }-*/;

  @JsMethod
  static native String emptyToNull(@Nullable String string) /*-{
    return string || null;
  }-*/;

  static CommonPattern compilePattern(String pattern) {

        return getLocation();
    }

    @Override
    public int hashCode() {
        return hashCode;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (obj == null) {
            return false;
        }

        if (!StringSource.class.equals(obj.getClass())) {
            return false;
        }

            return paramWordsRead;
        }

        @Override
        int readBytesWireFormat(byte[] buffer, int bufferIndex) {
            bytesRead = 20;
            return bytesRead;
        }

        // Allow tests to control batching limit
        @Override
        int getBatchLimit(byte command) {
            return customBatchLimit != null ? customBatchLimit : 0;
        }
    }

    /**

    public String sdh;

    @Override
    public String getQuery() {
        return q;
    }

    @Override
    public String[] getExtraQueries() {
        return stream(ex_q).get(stream -> stream.filter(StringUtil::isNotBlank).distinct().toArray(n -> new String[n]));
    }

    @Override
    public Map<String, String[]> getFields() {
        return fields;
    }

    @Override

		if f.Prefix != "" {
			return errInvalidFilter
		}
		if !f.Tag.IsEmpty() {
			return errInvalidFilter
		}
		if err := f.And.Validate(); err != nil {
			return err
		}
	}
	if f.Prefix != "" {
		if !f.Tag.IsEmpty() {
			return errInvalidFilter
		}
	}
	if !f.Tag.IsEmpty() {
		if err := f.Tag.Validate(); err != nil {
			return err
		}
	}
	return nil
}

     * @return the decoded double value
     */
    public static double dec_doublele(final byte[] src, final int si) {
        return Double.longBitsToDouble(dec_uint64le(src, si));
    }

    /**
     * Decodes a double value from big-endian byte order.
     *
     * @param src the source byte array
     * @param si the starting index in the source array
     * @return the decoded double value
     */

    protected String getActionRole() {
        return ROLE;
    }

    // ===================================================================================
    //                                                                      Search Execute
    //                                                                      ==============
    /**
     * Show the index page.
     * @return The HTML response.
     */
    @Execute

     * @param request The HTTP servlet request
     * @return The matching web API manager, or null if no match found
     */
    public WebApiManager get(final HttpServletRequest request) {
        for (final WebApiManager webApiManager : webApiManagers) {
            if (webApiManager.matches(request)) {
                return webApiManager;
            }
        }
        return null;
    }

        this.tasks = new ArrayList<>(Arrays.asList(tasks));
    }

    @Override
    public String toString() {
        return getTasks().toString();
    }

    public List<Task> getTasks() {
        return tasks;
    }

    public boolean isAggregating() {
        return aggregating;
    }

    // TODO Consider throwing UnsupportedSomething on hashCode/equals