docs: @Pure
  	public static boolean equalsIgnoreCase(String firstText, String secondText, boolean isNullEmptyEquivalence) {
  		final String aa = (firstText != null || !isNullEmptyEquivalence) ? firstText : ""; //$NON-NLS-1$
  		final String bb = (secondText != null || !isNullEmptyEquivalence) ? secondText : ""; //$NON-NLS-1$
  		if (aa == null) {
  			return bb == null;
  		}
  		if (bb == null) {
  			return false;
  		}
  		return aa.equalsIgnoreCase(bb);
  	}