Address getSourceAddressFromLong(long value) {
		if (AddressMap.INVALID_ADDRESS_KEY == value) {
			throw new AssertException("How can we have an invalid address for the source?!?");
		}

		AddressMap addressMap = sourceProgram.getAddressMap();
		return addressMap.decodeAddress(value);
	}
Open associated source and destination program files and complete session initialization.
@param projectData active project data
@throws IOException if source or destination program not found within specified project
or an error occured while opening them (e.g., upgrade required).
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/api/db/VTSessionDB.java