public static  void disable(int bits) 
{
        _enabled = _enabled & ~bits;
}

 public static  void enable(int bits) 
{
        _enabled = _enabled | bits;
}

 public static String log(String message) 
{
        log(message, null);
        return message;
}

 public static Throwable logException(Throwable t) 
{
        log(t.getMessage(), t);
        return t;
}

 public static String logStackTrace(String message) 
{
        log(message, new Throwable());
        return message;
}

 public static boolean test(int bits) 
{
        return (_enabled & bits) != 0;
}

 public static  void trace(int bits,
    String message,
    int indent) 
{
        if (test(bits))
        {
            synchronized (XBeanDebug.class)
            {
                if (indent <  0)
                    _indent += indent;
                String spaces = _indent <  0 ? "" : _indent  > _indentspace.length() ? _indentspace : _indentspace.substring(0, _indent);
                String logmessage = Thread.currentThread().getName() + ": " + spaces + message + "\n";
                System.err.print(logmessage);
                if (indent  > 0)
                    _indent += indent;
            }
        }
}