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105 lines
4.2 KiB
Java
105 lines
4.2 KiB
Java
/*
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* Copyright (c) 2022, 2025, 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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/**
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* @test
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* @bug 8291360
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* @summary Test getting a class's raw access flags using java.lang.Class API
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* @modules java.base/java.lang:open
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* @compile classAccessFlagsRaw.jcod
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* @run main/othervm ClassAccessFlagsRawTest
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*/
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import java.lang.reflect.*;
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import java.util.Set;
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public class ClassAccessFlagsRawTest {
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static Method m;
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public static void testIt(String className, int expectedResult) throws Exception {
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Class<?> testClass = Class.forName(className);
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int flags = (int)m.invoke(testClass);
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if (flags != expectedResult) {
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throw new RuntimeException(
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"expected 0x" + Integer.toHexString(expectedResult) + ", got 0x" + Integer.toHexString(flags) + " for class " + className);
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}
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}
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public static void main(String argv[]) throws Throwable {
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Class<?> cl = java.lang.Class.class;
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m = cl.getDeclaredMethod("getClassFileAccessFlags", new Class[0]);
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m.setAccessible(true);
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testIt("SUPERset", 0x21); // ACC_SUPER 0x20 + ACC_PUBLIC 0x1
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testIt("SUPERnotset", Modifier.PUBLIC);
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// Test that primitive should return ACC_ABSTRACT | ACC_FINAL | ACC_PUBLIC.
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int[] arr = new int[3];
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if (!arr.getClass().getComponentType().isPrimitive()) {
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throw new RuntimeException("not primitive");
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}
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int flags = (int)m.invoke(arr.getClass().getComponentType());
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if (flags != (Modifier.ABSTRACT | Modifier.FINAL | Modifier.PUBLIC)) {
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throw new RuntimeException(
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"expected 0x411, got 0x" + Integer.toHexString(flags) + " for primitive type");
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}
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// Test that primitive array raw access flags return 0.
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flags = (int)m.invoke(arr.getClass());
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if (flags != 0) {
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throw new RuntimeException(
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"expected 0x0 got 0x" + Integer.toHexString(flags) + " for primitive array");
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}
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// Test that the modifier flags return element type flags.
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flags = (int)arr.getClass().getModifiers();
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if (flags != (Modifier.ABSTRACT | Modifier.FINAL | Modifier.PUBLIC)) {
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throw new RuntimeException(
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"expected 0x411, got 0x" + Integer.toHexString(flags) + " for primitive type");
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}
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// Test that AccessFlags set will return element type access flags.
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Set<AccessFlag> aacc = arr.getClass().accessFlags();
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if (!aacc.containsAll(Set.of(AccessFlag.FINAL, AccessFlag.ABSTRACT, AccessFlag.PUBLIC))) {
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throw new RuntimeException(
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"AccessFlags should contain FINAL, ABSTRACT and PUBLIC for primitive type");
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}
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// Test object array. Raw access flags are 0 for arrays.
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flags = (int)m.invoke((new SUPERnotset[2]).getClass());
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if (flags != 0) {
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throw new RuntimeException(
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"expected 0x0, got 0x" + Integer.toHexString(flags) + " for object array");
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}
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// Test object array component type.
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flags = (int)m.invoke((new SUPERnotset[2]).getClass().getComponentType());
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if (flags != Modifier.PUBLIC) {
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throw new RuntimeException(
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"expected 0x1, got 0x" + Integer.toHexString(flags) + " for object array");
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}
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}
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}
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