public Address getAddress() {
		try {
			return getAddressWithExceptions();
		}
		catch (ExpressionException e) {
			return null;
		}
	}
Gets the current address the field evaluates to or null if the text does not evaluate to 
a valid, unique address.
@return the current address the field evalutes to or null if the text does not evalute to 
a valid unique address.
Ghidra/Features/Base/src/main/java/ghidra/app/util/AddressInput.java