Here you can find the source of getRefreshTime(KerberosTicket ticket)
static long getRefreshTime(KerberosTicket ticket)
//package com.java2s; /*/*from ww w . j a v a2 s.com*/ * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import javax.security.auth.kerberos.KerberosTicket; public class Main { private static final float TICKET_RENEW_WINDOW = 0.80f; static long getRefreshTime(KerberosTicket ticket) { long start = ticket.getStartTime().getTime(); long end = ticket.getEndTime().getTime(); return start + (long) ((end - start) * TICKET_RENEW_WINDOW); } }