public void unregisterListener() {
			field.removeCaretListener(listener);
			field.getDocument().removeDocumentListener(listener);
			field.removeKeyListener(listener);
			field.removeFocusListener(listener);
			listener = null;
		}
A field that has been added with its corresponding separator expression and replacement
Ghidra/Framework/Docking/src/main/java/docking/widgets/textfield/TextFieldLinker.java