--- /dev/null 2015-06-23 14:28:03.000000000 +0200 +++ new/test/runtime/modules/ImageFile/ImageFindAttributesTest.java 2015-06-23 14:28:03.000000000 +0200 @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. + * 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. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * Find the attributes of existing and invalid classes. + * @test ImageFindAttributesTest + * @summary Unit test for JVM_ImageFindAttributes() method + * @library /testlibrary /../../test/lib + * @build ImageFindAttributesTest + * @run main ClassFileInstaller sun.hotspot.WhiteBox + * sun.hotspot.WhiteBox$WhiteBoxPermission + * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI ImageFindAttributesTest + */ + +import java.io.File; +import java.nio.ByteOrder; +import sun.hotspot.WhiteBox; +import static jdk.test.lib.Asserts.*; + +public class ImageFindAttributesTest { + + 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); + + // class resource + String className = "/java.base/java/lang/String.class"; + long[] longArr = wb.imageFindAttributes(id, className.getBytes()); + + assertNotNull(longArr, "Could not retrieve attributes of class " + className); + + // non-existent resource + String neClassName = "/java.base/java/lang/NonExistentClass.class"; + longArr = wb.imageFindAttributes(id, neClassName.getBytes()); + + assertNull(longArr, "Failed. Returned not null for non-existent " + neClassName); + + // garbage byte array + byte[] buf = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; + longArr = wb.imageFindAttributes(id, buf); + + assertNull(longArr, "Found attributes for garbage class"); + } +}