jdk/test/com/sun/jdi/ClassLoaderClassesTest.java
author ohair
Tue, 25 May 2010 15:58:33 -0700
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child 24973 8c4bc3fa4c4e
permissions -rw-r--r--
6943119: Rebrand source copyright notices Reviewed-by: darcy, weijun
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/*
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 * Copyright (c) 2001, 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 4450091
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 *  @summary Test ClassLoaderReference.visibleClasses() which is
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 *  a direct pass-through of the JVMDI function GetClassLoaderClasses
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 *  for inclusion of primitive arrays.
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 *
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 *  @author Robert Field
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 *
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 *  @run build TestScaffold VMConnection TargetListener TargetAdapter
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 *  @run compile -g ClassLoaderClassesTest.java
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 *  @run main ClassLoaderClassesTest
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 */
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import com.sun.jdi.*;
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import com.sun.jdi.event.*;
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import com.sun.jdi.request.*;
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import java.util.*;
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    /********** target program **********/
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class ClassLoaderClassesTarg {
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    static int[] intArray = new int[10];
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    static {
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        // make sure our class loader "creates" int[] before tested
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        intArray[1] = 99;
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    }
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    public static void main(String[] args){
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        System.out.println("Goodbye from ClassLoaderClassesTarg!");
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    }
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}
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    /********** test program **********/
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public class ClassLoaderClassesTest extends TestScaffold {
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    ReferenceType targetClass;
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    ClassLoaderClassesTest (String args[]) {
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        super(args);
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    }
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    public static void main(String[] args)      throws Exception {
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        new ClassLoaderClassesTest(args).startTests();
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    }
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    /********** test assist **********/
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    boolean findClass(String className) throws Exception {
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        ClassLoaderReference cl = targetClass.classLoader();
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        Iterator vci = cl.visibleClasses().iterator();
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        while (vci.hasNext()) {
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            ReferenceType rt = (ReferenceType)vci.next();
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            println(rt.name() + " - " + rt.classLoader());
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            if (rt.name().equals(className)) {
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                return true;
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            }
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        }
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        return false;
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    }
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    /********** test core **********/
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    protected void runTests() throws Exception {
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        /*
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         * Get to the top of main() to determine targetClass
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         */
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        BreakpointEvent bpe = startToMain("ClassLoaderClassesTarg");
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        targetClass = bpe.location().declaringType();
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        if (findClass("int[]")) {
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            println("int[] found");
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        } else {
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            failure("failed - int[] not found");
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        }
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        // use it indirectly - throws ClassNotLoadedException on error
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        Field arrayField = targetClass.fieldByName("intArray");
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        ArrayType arrayType = (ArrayType)arrayField.type();
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        println("Type for intArray is " + arrayType);
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        /*
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         * resume the target until end
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         */
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        listenUntilVMDisconnect();
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        /*
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         * deal with results of test
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         * if anything has called failure("foo") testFailed will be true
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         */
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        if (!testFailed) {
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            println("ClassLoaderClassesTest: passed");
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        } else {
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            throw new Exception("ClassLoaderClassesTest: failed");
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        }
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    }
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}