getLogger().error( "failed on select of selector " + a_selector + " encountered exception: " + a_failure.getMessage() ) ;
if ( getLogger().isErrorEnabled() ) { getLogger().error( "failed on select of selector " + a_selector + " encountered exception: " + a_failure.getMessage() ) ; }
    public void failedToSelect( Selector a_selector, IOException a_failure )    {        getLogger().error( "failed on select of selector " + a_selector                 + " encountered exception: " + a_failure.getMessage() ) ;    }