1 /* 2 * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * 27 * @summary converted from VM Testbase nsk/jvmti/scenarios/hotswap/HS104/hs104t002. 28 * VM Testbase keywords: [quick, jpda, jvmti, noras, redefine, feature_hotswap] 29 * VM Testbase readme: 30 * Description : 31 * Case Name : Hotswap hs104t002: 32 * class(es) in asynchronous manner within an JVMTI event 33 * when all fields (changed initial values), methods (changed bodies), 34 * attributes and the constant pool are changed in new class(es). 35 * Comments : 36 * All the threads would be invoking redefineClass method asynchronously, 37 * and redefine should be possible without any errors. Any error while redefining 38 * class is considered as test failure. 39 * 40 * @library /vmTestbase 41 * /test/lib 42 * @run driver jdk.test.lib.FileInstaller . . 43 * @build nsk.jvmti.scenarios.hotswap.HS104.hs104t002.hs104t002 44 * 45 * @comment compile newclassXX to bin/newclassXX 46 * @run driver nsk.share.ExtraClassesBuilder 47 * newclass00 48 * 49 * @run main/othervm/native 50 * -agentlib:hs104t002=pathToNewByteCode=./bin 51 * nsk.jvmti.scenarios.hotswap.HS104.hs104t002.hs104t002 52 */ 53 54 package nsk.jvmti.scenarios.hotswap.HS104.hs104t002; 55 56 import nsk.share.jvmti.RedefineAgent; 57 import nsk.share.Wicket; 58 59 /** 60 * This class extends <b>RedefineAgent</b>. 61 * @see nsk.share.jvmti.RedefineAgent 62 */ 63 public class hs104t002 extends RedefineAgent { 64 65 private static final int size = 30; 66 67 private MyThread[] threadList = new MyThread[size]; 68 private Wicket wicket; 69 70 /** 71 * constructor for hs104t002. 72 */ hs104t002(String[] arg)73 public hs104t002(String[] arg) { 74 super(arg); 75 wicket = new Wicket(); 76 for(int i=0; i < size; i++) { 77 threadList[i] = new MyThread(wicket); 78 } 79 } 80 main(String[] arg)81 public static void main(String[] arg) { 82 arg = nsk.share.jvmti.JVMTITest.commonInit(arg); 83 84 hs104t002 hsCase = new hs104t002(arg); 85 System.exit(hsCase.runAgent()); 86 } 87 88 /** 89 * A native method to redefine MyThread class. 90 */ redefineClasses()91 public static native void redefineClasses(); 92 93 /** 94 * Method is called from RedefineAgent work flow. 95 * @return boolean true. Considered true if and only if testcase passes. 96 */ agentMethod()97 public boolean agentMethod() { 98 boolean pass = false; 99 try { 100 if ( !startAllThreads() ) { 101 return pass; 102 } 103 if ( !waitForAllThreads() ) { 104 return pass; 105 } 106 if ( checkThreads() && redefineAttempted() && 107 isRedefined() && agentStatus() ) { 108 pass = true; 109 } 110 } catch(Exception exp) { 111 exp.printStackTrace(); 112 // for any possible exception testcase is failure 113 pass=false; 114 } 115 if ( pass ) { 116 log.println(" Testcase hs104t002 :: Passed."); 117 } else { 118 log.println(" Testcase hs104t002 :: Failed."); 119 } 120 return pass; 121 } 122 123 /** 124 * Would start all threads properly. 125 * @return boolean. Returns true only if all threads started properly 126 * 127 */ startAllThreads()128 public boolean startAllThreads() { 129 boolean started= false; 130 try { 131 for(MyThread thread : threadList) { 132 thread.start(); 133 } 134 //notify all the threads to start their jobs. 135 wicket.unlock(); 136 started=true; 137 log.println(" startAllThreads :: All threads are running."); 138 } catch (IllegalStateException ise) { 139 log.complain(" startAllThreads :: Error occured while" 140 +" waiting for threads."); 141 ise.printStackTrace(); 142 } 143 return started; 144 } 145 146 /** 147 * Checks for failure in redefineClass call. 148 * @return boolean true iff, all the threads could redefine successfully. 149 */ checkThreads()150 public boolean checkThreads() { 151 boolean passedAll = true; 152 int failedThreadCount=0; 153 for(MyThread thread : threadList) { 154 if (thread.getThreadState() != 100) { 155 log.complain(" checkThreads :: Thread name ="+thread.getName() 156 +", Expected state = 100, state = " 157 +thread.getThreadState()); 158 failedThreadCount++; 159 passedAll=false; 160 } 161 } 162 if ( !passedAll ) { 163 log.complain(" checkThreads :: Number of threads failed = " 164 +failedThreadCount); 165 } 166 167 return passedAll; 168 } 169 170 /** 171 * @return boolean returns true iff all threads terminate properly. 172 */ waitForAllThreads()173 private boolean waitForAllThreads() { 174 boolean allExited = false; 175 try { 176 for(MyThread thread : threadList) { 177 thread.join(); 178 } 179 allExited= true; 180 log.println(" All threads terminated without " 181 +"java.lang.InterruptedException."); 182 } catch(java.lang.InterruptedException ie ) { 183 log.complain(" waitForAllThreads ::" 184 +" Got java.lang.InterruptedException." 185 + "Test would fail."); 186 ie.printStackTrace(); 187 } 188 return allExited; 189 } 190 } 191