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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * version 2 for more details (a copy is included in the LICENSE file that

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/*

 * Retrieves the array of offsets once with MemoryMapImage enabled once disabled.

 * @test ImageAttributeOffsetsTest

 * @summary Unit test for JVM_ImageAttributeOffsets() method

 * @library /testlibrary /../../test/lib

 * @build ImageAttributeOffsetsTest

 * @run main ClassFileInstaller sun.hotspot.WhiteBox

 *                              sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:+MemoryMapImage ImageAttributeOffsetsTest

 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:-MemoryMapImage ImageAttributeOffsetsTest

 */

import java.io.File;

import java.nio.ByteOrder;

import sun.hotspot.WhiteBox;

import static jdk.test.lib.Asserts.*;

public class ImageAttributeOffsetsTest {

    public static final WhiteBox wb = WhiteBox.getWhiteBox();

    public static void main(String... args) throws Exception {

        String javaHome = System.getProperty("java.home");

        String imageFile = javaHome + File.separator + "lib" + File.separator

                + "modules" + File.separator + "bootmodules.jimage";

        if (!(new File(imageFile)).exists()) {

            System.out.printf("Test skipped.");

            return;

        }

        boolean bigEndian = ByteOrder.nativeOrder() == ByteOrder.BIG_ENDIAN;

        long id = wb.imageOpenImage(imageFile, bigEndian);

        boolean passed = true;

        // Get offsets

        int[] array = wb.imageAttributeOffsets(id);

        assertNotNull(array, "Could not retrieve offsets of array");

        wb.imageCloseImage(id);

    }

}