protected boolean checkConnection()
    {
        try{
            super.checkConnection();
        }
        finally
        {
            if (_jarConnection==null)
            {
                _entry=null;
                _file=null;
                _jarFile=null;
                _list=null;
            }
        }
        return _jarFile!=null;
    }
protected boolean checkConnection ( ) { try { super . checkConnection ( ) ; } finally { if ( _jarConnection == null ) { _entry = null ; _file = null ; _jarFile = null ; _list = null ; } } return _jarFile != null ; }
/* ------------------------------------------------------------