private void updateText() {
		if (isProcessingFocusEvent) {
			return; // ignore transient events
		}

		InputVerifier verifier = getInputVerifier();
		if (verifier != null) {
			setIsError(!verifier.verify(this));
		}

		update();
	}
Returns the default text.  This is useful to know what the original text is after the user
has edited the text.
@return the default text
Ghidra/Framework/Docking/src/main/java/docking/widgets/textfield/GFormattedTextField.java