A Java Preferences for larger amounts of data

After two days of hacking around with the Java Preferences, I have come to the conclusion that Preferences were never meant to store large amounts of data. It seems to me that this is an important sub-problem. One of the people who has addressed the problem is David Croft. His code, which uses properties, is still unable to serialize large amounts of data, for reasons I cannot fathom. [login to view URL] shows his file example. The simplest example I can use to break his code appears below. We are interested in a java program that enables the storing of larger amounts of data in file preferences (perhaps 0.5Mb or so). Thanks! - D public static void main(String[] args) throws BackingStoreException { Preferences p = getPreferences([login to view URL]); for (String s : [login to view URL]()) { [login to view URL]("p[" + s + "]=" + [login to view URL](s, null)); } StringBuffer sb = new StringBuffer(); for (int i=0; i < 1<<11; i++){ [login to view URL](" "+i); } [login to view URL]("hi", true); [login to view URL]("Number", [login to view URL]([login to view URL]())); [login to view URL]("large string",[login to view URL]()); } public static Preferences getPreferences(Object c) { [login to view URL]("[login to view URL]", [login to view URL]()); File preferenceDir = [login to view URL](); [login to view URL]("preferenceDir:"+preferenceDir); File preferenceFile = new File(preferenceDir,"[login to view URL]"); [login to view URL](SYSTEM_PROPERTY_FILE, [login to view URL]()); [login to view URL]("storing preferences in:"+preferenceFile); return [login to view URL]([login to view URL]()); }