1 /*
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 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 9  * This code is distributed in the hope that it will be useful, but WITHOUT
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24 
25 /**
26  * @test
27  * @bug 8291360 8293448
28  * @summary Test getting a class's raw access flags using java.lang.Class API
29  * @modules java.base/java.lang:open
30  * @enablePreview
31  * @compile classAccessFlagsRaw.jcod
32  * @run main/othervm ClassAccessFlagsRawTest
33  */
34 
35 import java.lang.reflect.*;
36 
37 public class ClassAccessFlagsRawTest {
38 
39     static Method m;
40 
41     public static void testIt(String className, int expectedResult) throws Exception {
42         Class<?> testClass = Class.forName(className);
43         int flags = (int)m.invoke(testClass);
44         if (flags != expectedResult) {
45             throw new RuntimeException(
46                 "expected 0x" + Integer.toHexString(expectedResult) + ", got 0x" + Integer.toHexString(flags) + " for class " + className);
47         }
48     }
49 
50     public static void main(String argv[]) throws Throwable {
51         Class<?> cl = java.lang.Class.class;
52         m = cl.getDeclaredMethod("getClassAccessFlagsRaw", new Class[0]);
53         m.setAccessible(true);
54 
55         testIt("SUPERset", Modifier.PUBLIC | Modifier.IDENTITY);
56         // Because of the repurposing of ACC_SUPER into ACC_IDENTITY by JEP 401, the VM now fixes missing ACC_IDENTITY flags in old class files
57         testIt("SUPERnotset", Modifier.PUBLIC | Modifier.IDENTITY);
58 
59         // test primitive array.  should return ACC_ABSTRACT | ACC_FINAL | ACC_PUBLIC.
60         int flags = (int)m.invoke((new int[3]).getClass());
61         if (flags != (Modifier.ABSTRACT | Modifier.FINAL | Modifier.PUBLIC)) {
62             throw new RuntimeException(
63                 "expected 0x411, got 0x" + Integer.toHexString(flags) + " for primitive array");
64         }
65 
66         // test object array.  should return flags of component.
67         flags = (int)m.invoke((new SUPERnotset[2]).getClass());
68         // Because of the repurposing of ACC_SUPER into ACC_IDENTITY by JEP 401, the VM now fixes missing ACC_IDENTITY flags in old class files
69         if (flags != (Modifier.PUBLIC | Modifier.IDENTITY)) {
70             throw new RuntimeException(
71                 "expected 0x1, got 0x" + Integer.toHexString(flags) + " for object array");
72         }
73 
74         // test multi-dimensional object array.  should return flags of component.
75         flags = (int)m.invoke((new SUPERnotset[4][2]).getClass());
76         // Because of the repurposing of ACC_SUPER into ACC_IDENTITY by JEP 401, the VM now fixes missing ACC_IDENTITY flags in old class files
77         if (flags != (Modifier.PUBLIC | Modifier.IDENTITY)) {
78             throw new RuntimeException(
79                 "expected 0x1, got 0x" + Integer.toHexString(flags) + " for object array");
80         }
81     }
82 }