1 /*
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   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  *  @bug 4406439 4925740
  27  *  @summary ClassesByName2 verifies that all the classes in the loaded class list can be found with classesByName..
  28  *
  29  *  @author Tim Bell (based on ClassesByName by Robert Field)
  30  *
  31  *  @modules java.corba
  32  *           jdk.jdi
  33  *  @run build TestScaffold VMConnection TargetListener TargetAdapter
  34  *  @run compile -g ClassesByName2Test.java
  35  *  @run driver ClassesByName2Test
  36  */
  37 import com.sun.jdi.*;
  38 import com.sun.jdi.event.*;
  39 import com.sun.jdi.request.*;
  40 
  41 import java.util.*;
  42 
  43     /********** target program **********/
  44 
  45 class ClassesByName2Targ {
  46     static void bkpt() {
  47     }
  48 
  49     public static void main(String[] args){
  50         System.out.println("Howdy!");
  51         try {
  52 
  53             Thread zero = new Thread ("ZERO") {
  54                     public void run () {
  55                         System.setProperty("java.awt.headless", "true");
  56                         java.awt.Toolkit tk = java.awt.Toolkit.getDefaultToolkit();
  57 
  58                     }
  59                 };
  60 
  61             Thread one = new Thread ("ONE") {
  62                     public void run () {
  63                         try {
  64                             java.security.KeyPairGenerator keyGen =
  65                                 java.security.KeyPairGenerator.getInstance("DSA", "SUN");
  66                         } catch (Exception e) {
  67                             e.printStackTrace();
  68                         }
  69                     }
  70                 };
  71 
  72             Thread two = new Thread ("TWO") {
  73                     public void run () {
  74                         javax.rmi.CORBA.Util.getCodebase(this.getClass());
  75                     }
  76                 };
  77 
  78             two.start();
  79             one.start();
  80             zero.start();
  81 
  82             try {
  83                 zero.join();
  84                 System.out.println("zero joined");
  85                 one.join();
  86                 System.out.println("one joined");
  87                 two.join();
  88                 System.out.println("two joined");
  89             } catch (InterruptedException iex) {
  90                 iex.printStackTrace();
  91             }
  92         } catch (Exception e) {
  93             e.printStackTrace();
  94         }
  95         bkpt();
  96         System.out.println("Goodbye from ClassesByName2Targ!");
  97     }
  98 }
  99 
 100     /********** test program **********/
 101 
 102 public class ClassesByName2Test extends TestScaffold {
 103     volatile boolean stop = false;
 104 
 105     ClassesByName2Test (String args[]) {
 106         super(args);
 107     }
 108 
 109     public void breakpointReached(BreakpointEvent event) {
 110         System.out.println("Got BreakpointEvent: " + event);
 111         stop = true;
 112     }
 113 
 114     public void eventSetComplete(EventSet set) {
 115         // Don't resume.
 116     }
 117 
 118     public static void main(String[] args)      throws Exception {
 119         new ClassesByName2Test(args).startTests();
 120     }
 121 
 122     void breakpointAtMethod(ReferenceType ref, String methodName)
 123                                            throws Exception {
 124         List meths = ref.methodsByName(methodName);
 125         if (meths.size() != 1) {
 126             throw new Exception("test error: should be one " +
 127                                 methodName);
 128         }
 129         Method meth = (Method)meths.get(0);
 130         BreakpointRequest bkptReq = vm().eventRequestManager().
 131             createBreakpointRequest(meth.location());
 132         bkptReq.enable();
 133         try {
 134             addListener (this);
 135         } catch (Exception ex){
 136             ex.printStackTrace();
 137             failure("failure: Could not add listener");
 138             throw new Exception("ClassesByname2Test: failed");
 139         }
 140     }
 141 
 142     protected void runTests() throws Exception {
 143         BreakpointEvent bpe = startToMain("ClassesByName2Targ");
 144 
 145         /*
 146           Bug 6263966 - Don't just resume because the debuggee can
 147           complete and disconnect while the following loop is
 148           accessing it.
 149         */
 150         breakpointAtMethod(bpe.location().declaringType(), "bkpt");
 151         vm().resume();
 152 
 153         /* The test of 'stop' is so that we stop when the debuggee hits
 154            the bkpt.  The 150 is so we stop if the debuggee
 155            is slow (eg, -Xcomp -server) - we don't want to
 156            spend all day waiting for it to get to the bkpt.
 157         */
 158         for (int i = 0; i < 150 && !stop; i++) {
 159             List all = vm().allClasses();
 160             System.out.println("\n++++ Lookup number: " + i + ".  allClasses() returned " +
 161                                all.size() + " classes.");
 162             for (Iterator it = all.iterator(); it.hasNext(); ) {
 163                 ReferenceType cls = (ReferenceType)it.next();
 164                 String name = cls.name();
 165                 List found = vm().classesByName(name);
 166                 if (found.contains(cls)) {
 167                     //System.out.println("Found class: " + name);
 168                 } else {
 169                     System.out.println("CLASS NOT FOUND: " + name);
 170                     throw new Exception("CLASS NOT FOUND (by classesByName): " +
 171                                         name);
 172                 }
 173             }
 174         }
 175 
 176         // In case of a slow debuggee, we don't want to resume the debuggee and wait
 177         // for it to complete.
 178         vm().exit(0);
 179 
 180         /*
 181          * deal with results of test
 182          * if anything has called failure("foo") testFailed will be true
 183          */
 184         if (!testFailed) {
 185             println("ClassesByName2Test: passed");
 186         } else {
 187             throw new Exception("ClassesByName2Test: failed");
 188         }
 189     }
 190 }