Mercurial > hg > truffle
comparison test/compiler/jsr292/VMAnonymousClasses.java @ 20574:9dc314de223d
8058828: Wrong ciConstant type for arrays from ConstantPool::_resolved_reference
Reviewed-by: kvn, jrose
author | vlivanov |
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date | Wed, 01 Oct 2014 12:34:38 -0700 |
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20573:8ed0a8dbea70 | 20574:9dc314de223d |
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1 /* | |
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
23 | |
24 /** | |
25 * @test | |
26 * @bug 8058828 | |
27 * @run main/bootclasspath -Xbatch VMAnonymousClasses | |
28 */ | |
29 | |
30 import jdk.internal.org.objectweb.asm.ClassWriter; | |
31 import jdk.internal.org.objectweb.asm.MethodVisitor; | |
32 import jdk.internal.org.objectweb.asm.Opcodes; | |
33 import sun.misc.Unsafe; | |
34 | |
35 import java.lang.invoke.ConstantCallSite; | |
36 import java.lang.invoke.MethodHandle; | |
37 import java.lang.invoke.MethodHandles; | |
38 import java.lang.invoke.MethodType; | |
39 import java.lang.invoke.MutableCallSite; | |
40 import java.lang.invoke.VolatileCallSite; | |
41 | |
42 public class VMAnonymousClasses { | |
43 static final String TEST_METHOD_NAME = "constant"; | |
44 | |
45 static final Unsafe UNSAFE = Unsafe.getUnsafe(); | |
46 | |
47 static int getConstantPoolSize(byte[] classFile) { | |
48 // The first few bytes: | |
49 // u4 magic; | |
50 // u2 minor_version; | |
51 // u2 major_version; | |
52 // u2 constant_pool_count; | |
53 return ((classFile[8] & 0xFF) << 8) | (classFile[9] & 0xFF); | |
54 } | |
55 | |
56 static void test(Object value) throws ReflectiveOperationException { | |
57 System.out.printf("Test: %s", value != null ? value.getClass() : "null"); | |
58 | |
59 ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES); | |
60 cw.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC | Opcodes.ACC_SUPER, "Test", null, "java/lang/Object", null); | |
61 | |
62 MethodVisitor mv = cw.visitMethod(Opcodes.ACC_STATIC | Opcodes.ACC_PUBLIC, TEST_METHOD_NAME, "()Ljava/lang/Object;", null, null); | |
63 | |
64 String placeholder = "CONSTANT"; | |
65 int index = cw.newConst(placeholder); | |
66 mv.visitLdcInsn(placeholder); | |
67 mv.visitInsn(Opcodes.ARETURN); | |
68 | |
69 mv.visitMaxs(0, 0); | |
70 mv.visitEnd(); | |
71 | |
72 byte[] classFile = cw.toByteArray(); | |
73 | |
74 Object[] cpPatches = new Object[getConstantPoolSize(classFile)]; | |
75 cpPatches[index] = value; | |
76 | |
77 Class<?> test = UNSAFE.defineAnonymousClass(VMAnonymousClasses.class, classFile, cpPatches); | |
78 | |
79 Object expectedResult = (value != null) ? value : placeholder; | |
80 for (int i = 0; i<15000; i++) { | |
81 Object result = test.getMethod(TEST_METHOD_NAME).invoke(null); | |
82 if (result != expectedResult) { | |
83 throw new AssertionError(String.format("Wrong value returned: %s != %s", value, result)); | |
84 } | |
85 } | |
86 System.out.println(" PASSED"); | |
87 } | |
88 | |
89 public static void main(String[] args) throws ReflectiveOperationException { | |
90 // Objects | |
91 test(new Object()); | |
92 test("TEST"); | |
93 test(new VMAnonymousClasses()); | |
94 test(null); | |
95 | |
96 // Class | |
97 test(String.class); | |
98 | |
99 // Arrays | |
100 test(new boolean[0]); | |
101 test(new byte[0]); | |
102 test(new char[0]); | |
103 test(new short[0]); | |
104 test(new int[0]); | |
105 test(new long[0]); | |
106 test(new float[0]); | |
107 test(new double[0]); | |
108 test(new Object[0]); | |
109 | |
110 // Multi-dimensional arrays | |
111 test(new byte[0][0]); | |
112 test(new Object[0][0]); | |
113 | |
114 // MethodHandle-related | |
115 MethodType mt = MethodType.methodType(void.class, String[].class); | |
116 MethodHandle mh = MethodHandles.lookup().findStatic(VMAnonymousClasses.class, "main", mt); | |
117 test(mt); | |
118 test(mh); | |
119 test(new ConstantCallSite(mh)); | |
120 test(new MutableCallSite(MethodType.methodType(void.class))); | |
121 test(new VolatileCallSite(MethodType.methodType(void.class))); | |
122 | |
123 System.out.println("TEST PASSED"); | |
124 } | |
125 } |