author | weijun |
Thu, 02 Jul 2015 16:20:43 +0800 | |
changeset 31474 | 7b79555b8073 |
parent 30820 | 0d4717a011d3 |
child 32302 | bde34f20faa1 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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* @test |
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* @bug 6844193 |
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* @compile -XDignore.symbol.file MaxRetries.java |
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* @run main/othervm/timeout=300 MaxRetries |
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* @summary support max_retries in krb5.conf |
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*/ |
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import java.io.*; |
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import java.net.DatagramSocket; |
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import java.security.Security; |
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public class MaxRetries { |
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public static void main(String[] args) |
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throws Exception { |
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System.setProperty("sun.security.krb5.debug", "true"); |
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new OneKDC(null).writeJAASConf(); |
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// An idle UDP socket to revent PortUnreachableException |
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DatagramSocket ds = new DatagramSocket(33333); |
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System.setProperty("java.security.krb5.conf", "alternative-krb5.conf"); |
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// For tryLast |
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Security.setProperty("krb5.kdc.bad.policy", "trylast"); |
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rewriteMaxRetries(4); |
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test1(4000, 6); // 1 1 1 1 2 2 |
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test1(4000, 2); // 2 2 |
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rewriteMaxRetries(1); |
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test1(1000, 3); // 1 2 2 |
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test1(1000, 2); // 2 2 |
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rewriteMaxRetries(-1); |
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test1(5000, 4); // 1 1 2 2 |
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test1(5000, 2); // 2 2 |
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// For tryLess |
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Security.setProperty("krb5.kdc.bad.policy", "tryless:1," + BadKdc.toReal(5000)); |
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rewriteMaxRetries(4); |
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test1(4000, 7); // 1 1 1 1 2 1 2 |
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test1(4000, 4); // 1 2 1 2 |
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rewriteMaxRetries(1); |
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test1(1000, 4); // 1 2 1 2 |
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test1(1000, 4); // 1 2 1 2 |
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rewriteMaxRetries(-1); |
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test1(5000, 5); // 1 1 2 1 2 |
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test1(5000, 4); // 1 2 1 2 |
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rewriteUdpPrefLimit(-1, -1); // default, no limit |
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test2("UDP"); |
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rewriteUdpPrefLimit(10, -1); // global rules |
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test2("TCP"); |
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rewriteUdpPrefLimit(10, 10000); // realm rules |
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test2("UDP"); |
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rewriteUdpPrefLimit(10000, 10); // realm rules |
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test2("TCP"); |
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ds.close(); |
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} |
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/** |
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* One round of test for max_retries and timeout. |
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* @param timeout the expected timeout |
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* @param count the expected total try |
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*/ |
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private static void test1(int timeout, int count) throws Exception { |
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String timeoutTag = "timeout=" + BadKdc.toReal(timeout); |
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ByteArrayOutputStream bo = new ByteArrayOutputStream(); |
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PrintStream oldout = System.out; |
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System.setOut(new PrintStream(bo)); |
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Context c = Context.fromJAAS("client"); |
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System.setOut(oldout); |
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String[] lines = new String(bo.toByteArray()).split("\n"); |
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System.out.println("----------------- TEST (" + timeout + "," + |
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count + ") -----------------"); |
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for (String line: lines) { |
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if (line.startsWith(">>> KDCCommunication")) { |
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System.out.println(line); |
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if (line.indexOf(timeoutTag) < 0) { |
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throw new Exception("Wrong timeout value" + timeoutTag); |
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} |
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count--; |
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} |
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} |
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if (count != 0) { |
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throw new Exception("Retry count is " + count + " less"); |
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} |
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} |
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/** |
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* One round of test for udp_preference_limit. |
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* @param proto the expected protocol used |
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*/ |
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private static void test2(String proto) throws Exception { |
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ByteArrayOutputStream bo = new ByteArrayOutputStream(); |
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PrintStream oldout = System.out; |
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System.setOut(new PrintStream(bo)); |
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Context c = Context.fromJAAS("client"); |
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System.setOut(oldout); |
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int count = 2; |
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String[] lines = new String(bo.toByteArray()).split("\n"); |
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System.out.println("----------------- TEST -----------------"); |
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for (String line: lines) { |
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if (line.startsWith(">>> KDCCommunication")) { |
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System.out.println(line); |
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count--; |
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if (line.indexOf(proto) < 0) { |
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throw new Exception("Wrong timeout value"); |
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} |
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} |
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} |
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if (count != 0) { |
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throw new Exception("Retry count is " + count + " less"); |
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} |
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} |
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/** |
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* Set udp_preference_limit for global and realm |
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*/ |
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private static void rewriteUdpPrefLimit(int global, int realm) |
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throws Exception { |
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BufferedReader fr = new BufferedReader(new FileReader(OneKDC.KRB5_CONF)); |
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FileWriter fw = new FileWriter("alternative-krb5.conf"); |
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while (true) { |
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String s = fr.readLine(); |
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if (s == null) { |
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break; |
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} |
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if (s.startsWith("[realms]")) { |
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// Reconfig global setting |
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if (global != -1) { |
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fw.write("udp_preference_limit = " + global + "\n"); |
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} |
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} else if (s.trim().startsWith("kdc = ")) { |
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if (realm != -1) { |
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// Reconfig for realm |
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fw.write(" udp_preference_limit = " + realm + "\n"); |
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} |
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} |
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fw.write(s + "\n"); |
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} |
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fr.close(); |
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fw.close(); |
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sun.security.krb5.Config.refresh(); |
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} |
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/** |
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* Set max_retries and timeout value for realm. The global value is always |
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* 2 and 5000. |
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* @param value max_retries and timeout/1000 for a realm, -1 means none. |
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*/ |
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private static void rewriteMaxRetries(int value) throws Exception { |
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BufferedReader fr = new BufferedReader(new FileReader(OneKDC.KRB5_CONF)); |
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FileWriter fw = new FileWriter("alternative-krb5.conf"); |
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while (true) { |
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String s = fr.readLine(); |
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if (s == null) { |
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break; |
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} |
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if (s.startsWith("[realms]")) { |
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// Reconfig global setting |
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fw.write("max_retries = 2\n"); |
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parents:
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changeset
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fw.write("kdc_timeout = " + BadKdc.toReal(5000) + "\n"); |
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} else if (s.trim().startsWith("kdc = ")) { |
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if (value != -1) { |
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// Reconfig for realm |
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fw.write(" max_retries = " + value + "\n"); |
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fw.write(" kdc_timeout = " + BadKdc.toReal(value*1000) + "\n"); |
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} |
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// Add a bad KDC as the first candidate |
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fw.write(" kdc = localhost:33333\n"); |
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} |
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fw.write(s + "\n"); |
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} |
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fr.close(); |
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fw.close(); |
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sun.security.krb5.Config.refresh(); |
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} |
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} |