public static String getProjectPathname(String projectName, String pathname) {
		if (pathname.length() < 2 || !pathname.startsWith(FileSystem.SEPARATOR)) {
			throw new IllegalArgumentException("Absolute project pathname required");
		}
		return PROJECT_NAME_DELIMETER + projectName + PROJECT_NAME_DELIMETER + pathname;
	}
Create project archive path string for recently used project archive
@param projectName the project name
@param pathname the pathname used to create the final path
@return recently used project pathname string
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/DataTypeManagerHandler.java