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 4450091
  27  *  @summary Test ClassLoaderReference.visibleClasses() which is
  28  *  a direct pass-through of the JVMDI function GetClassLoaderClasses
  29  *  for inclusion of primitive arrays.
  30  *
  31  *  @author Robert Field
  32  *
  33  *  @modules jdk.jdi
  34  *  @run build TestScaffold VMConnection TargetListener TargetAdapter
  35  *  @run compile -g ClassLoaderClassesTest.java
  36  *  @run driver ClassLoaderClassesTest
  37  */
  38 import com.sun.jdi.*;
  39 import com.sun.jdi.event.*;
  40 import com.sun.jdi.request.*;
  41 
  42 import java.util.*;
  43 
  44     /********** target program **********/
  45 
  46 class ClassLoaderClassesTarg {
  47     static int[] intArray = new int[10];
  48 
  49     static {
  50         // make sure our class loader "creates" int[] before tested
  51         intArray[1] = 99;
  52     }
  53 
  54     public static void main(String[] args){
  55         System.out.println("Goodbye from ClassLoaderClassesTarg!");
  56     }
  57 }
  58 
  59     /********** test program **********/
  60 
  61 public class ClassLoaderClassesTest extends TestScaffold {
  62     ReferenceType targetClass;
  63 
  64     ClassLoaderClassesTest (String args[]) {
  65         super(args);
  66     }
  67 
  68     public static void main(String[] args)      throws Exception {
  69         new ClassLoaderClassesTest(args).startTests();
  70     }
  71 
  72     /********** test assist **********/
  73 
  74     boolean findClass(String className) throws Exception {
  75         ClassLoaderReference cl = targetClass.classLoader();
  76         Iterator vci = cl.visibleClasses().iterator();
  77         while (vci.hasNext()) {
  78             ReferenceType rt = (ReferenceType)vci.next();
  79             println(rt.name() + " - " + rt.classLoader());
  80             if (rt.name().equals(className)) {
  81                 return true;
  82             }
  83         }
  84         return false;
  85     }
  86 
  87     /********** test core **********/
  88 
  89     protected void runTests() throws Exception {
  90         /*
  91          * Get to the top of main() to determine targetClass
  92          */
  93         BreakpointEvent bpe = startToMain("ClassLoaderClassesTarg");
  94         targetClass = bpe.location().declaringType();
  95 
  96         if (findClass("int[]")) {
  97             println("int[] found");
  98         } else {
  99             failure("failed - int[] not found");
 100         }
 101 
 102         // use it indirectly - throws ClassNotLoadedException on error
 103         Field arrayField = targetClass.fieldByName("intArray");
 104         ArrayType arrayType = (ArrayType)arrayField.type();
 105         println("Type for intArray is " + arrayType);
 106 
 107         /*
 108          * resume the target until end
 109          */
 110         listenUntilVMDisconnect();
 111 
 112         /*
 113          * deal with results of test
 114          * if anything has called failure("foo") testFailed will be true
 115          */
 116         if (!testFailed) {
 117             println("ClassLoaderClassesTest: passed");
 118         } else {
 119             throw new Exception("ClassLoaderClassesTest: failed");
 120         }
 121     }
 122 }