private void defprops() {
	for(String p : sysprops)
	    props.put(p, System.getProperty(p));
	Runtime rt = Runtime.getRuntime();
	props.put("cpus", rt.availableProcessors());
	InputStream in = ErrorHandler.class.getResourceAsStream("/buildinfo");
	try {
	    try {
		if(in != null) {
		    Properties info = new Properties();
		    info.load(in);
		    for(Map.Entry<Object, Object> e : info.entrySet())
			props.put("jar." + (String)e.getKey(), e.getValue());
		}
	    } finally {
		in.close();
	    }
	} catch(IOException e) {
	    throw(new Error(e));
	}
    }