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