protected GrantedAuthoritiesMapper getAuthoritiesMapper() throws Exception {
		if (authoritiesMapper != null) {
			return authoritiesMapper;
		}

		SimpleAuthorityMapper simpleAuthorityMapper = new SimpleAuthorityMapper();
		simpleAuthorityMapper.setPrefix(this.rolePrefix);
		simpleAuthorityMapper.afterPropertiesSet();
		this.authoritiesMapper = simpleAuthorityMapper;
		return simpleAuthorityMapper;
	}
protected GrantedAuthoritiesMapper getAuthoritiesMapper ( ) throws Exception { if ( authoritiesMapper != null ) { return authoritiesMapper ; } SimpleAuthorityMapper simpleAuthorityMapper = new SimpleAuthorityMapper ( ) ; simpleAuthorityMapper . setPrefix ( this . rolePrefix ) ; simpleAuthorityMapper . afterPropertiesSet ( ) ; this . authoritiesMapper = simpleAuthorityMapper ; return simpleAuthorityMapper ; }
Gets the {@link GrantedAuthoritiesMapper} and defaults to {@link SimpleAuthorityMapper}.

@return the {@link GrantedAuthoritiesMapper}
@throws Exception if errors in {@link SimpleAuthorityMapper#afterPropertiesSet()}