void writeDataState(SaveState saveState) {
		String[] expandedPaths = treePanel.getExpandedPathsByNodeName();
		if (expandedPaths == null || expandedPaths.length == 0) {
			return;
		}

		saveState.putStrings(EXPANDED_PATHS, expandedPaths);
		saveState.putBoolean("SHOW_TABLE", isTableShowing());
	}
returns the ProjectURL for the current active view; null if no views open
@return the ProjectURL for the current active view; null if no views open
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/ProjectDataPanel.java