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Appdapter Maven project including Java and Scala, produces jar, not bundle. Excludes concrete SLF4J binding.

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package org.appdapter.gui.browse;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

import org.appdapter.api.trigger.AnyOper;

/**
 * Contains settings for the application
 *
 * 
 */
public class Settings implements AnyOper.Singleton, AnyOper.Autoload, java.io.Serializable {
	private final static String FILENAME = "objectColSettings.ser";
	private final static int RECENT_FILE_COUNT = 5;
	transient static Settings settings;

	public List recentFiles;

	private Settings() {
		recentFiles = new LinkedList();
	}

	public static void addRecentFile(File file) {
		if (file != null && !settings.recentFiles.contains(file)) {
			settings.recentFiles.add(0, file);
		}
		while (settings.recentFiles.size() > 5) {
			settings.recentFiles.remove(4);
		}
	}

	public static Iterator getRecentFiles() {
		return settings.recentFiles.iterator();
	}

	static {
		if (getFile().exists()) {
			try {
				loadFromFile();
			} catch (Exception err) {
				System.err.println("Warning - settings could not be loaded: " + err.getMessage());
				settings = new Settings();
			}
		} else {
			settings = new Settings();
		}
	}

	protected void finalize() {
		try {
			saveToFile();
		} catch (Exception err) {
			System.err.println("Warning - settings could not be saved: " + err.getMessage());
		}
	}

	public static void loadFromFile() throws Exception {
		InputStream fileIn = new FileInputStream(getFile());
		ObjectInputStream objectIn = new ObjectInputStream(fileIn);
		settings = (Settings) (objectIn.readObject());
		objectIn.close();
		fileIn.close();
	}

	public static void saveToFile() throws Exception {
		FileOutputStream fileOut = new FileOutputStream(getFile());
		ObjectOutputStream objectOut = new ObjectOutputStream(fileOut);
		objectOut.writeObject(settings);
		objectOut.close();
		fileOut.close();
	}

	private static File getFile() {
		File homeDir = new File(System.getProperties().getProperty("user.home"));
		return new File(homeDir, FILENAME);
	}

}