test/hotspot/jtreg/vmTestbase/vm/mlvm/anonloader/func/classNameInStackTrace/Test.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
 * @test
 * @modules java.base/jdk.internal.misc
 *
 * @summary converted from VM Testbase vm/mlvm/anonloader/func/classNameInStackTrace.
 * VM Testbase keywords: [feature_mlvm]
 * VM Testbase readme:
 * DESCRIPTION
 *     An exception is thrown by class loaded by Unsafe.defineAnonymousClass. Verify that
 *     the exception's stack trace contains name of the current test class (i.e.,
 *     verify that the stack trace is not broken)
 *
 * @library /vmTestbase
 *          /test/lib
 * @run driver jdk.test.lib.FileInstaller . .
 *
 * @comment build test class and indify classes
 * @build vm.mlvm.anonloader.func.classNameInStackTrace.Test
 * @run driver vm.mlvm.share.IndifiedClassesBuilder
 *
 * @run main/othervm vm.mlvm.anonloader.func.classNameInStackTrace.Test
 */

package vm.mlvm.anonloader.func.classNameInStackTrace;

import java.io.ByteArrayOutputStream;
import java.io.PrintStream;

import vm.mlvm.anonloader.share.AnonkTestee01;
import vm.mlvm.share.MlvmTest;
import vm.share.FileUtils;
import vm.share.UnsafeAccess;

public class Test extends MlvmTest {
    private static final Class<?> PARENT = AnonkTestee01.class;

    public boolean run() throws Exception {
        byte[] classBytes = FileUtils.readClass(PARENT.getName());
        Class<?> cls = UnsafeAccess.unsafe.defineAnonymousClass(PARENT,
                classBytes, null);
        try {
            // hashCode() in AnonkTestee01 always throws an exception
            cls.newInstance().hashCode();
            return false;

        } catch ( RuntimeException e ) {
            ByteArrayOutputStream byteOS = new ByteArrayOutputStream();
            PrintStream printStream = new PrintStream(byteOS);
            e.printStackTrace(printStream);
            printStream.close();
            String stackTrace = byteOS.toString("ASCII");
            getLog().display("Caught exception stack trace: " + stackTrace);
            return stackTrace.contains(Test.class.getName());
        }
    }

    public static void main(String[] args) { MlvmTest.launch(args); }
}