@Override
	protected void cancelCallback() {
		isCanceled = true;
		for (int v = 0; v < inputValues.length; v++) {
			inputValues[v] = null;
		}

		close();
	}
completes the construction of the gui for this dialog
Ghidra/Framework/Docking/src/main/java/docking/widgets/dialogs/InputDialog.java