public AddressSpace getAddressSpace() {
		return addressSpaceField.getAddressSpace();
	}
Returns the address space selected in the combobox the default address space if the
comboBox is not being shown.

@return the selected address space, or the default address space if no combo added, or
null if no program is set.
Ghidra/Features/Base/src/main/java/ghidra/app/util/AddressInput.java