private static synchronized Set<String> loadFromSavedState() {
		Project project = AppInfo.getActiveProject();
		if (project != null) {
			SaveState saveState = project.getSaveableData(Loader.OPTIONS_PROJECT_SAVE_STATE_KEY);
			if (saveState != null) {
				String[] paths = saveState.getStrings(LIBRARY_SEARCH_PATH_STATE_NAME, null);
				if (paths != null) {
					return new LinkedHashSet<String>(Arrays.asList(paths));
				}
			}
		}
		return null;
	}
Resets the library search path to the default values
Ghidra/Features/Base/src/main/java/ghidra/app/util/importer/LibrarySearchPathManager.java