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comparison test/compiler/jsr292/VMAnonymousClasses.java @ 20574:9dc314de223d

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8058828: Wrong ciConstant type for arrays from ConstantPool::_resolved_reference Reviewed-by: kvn, jrose
author vlivanov
date Wed, 01 Oct 2014 12:34:38 -0700
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20573:8ed0a8dbea70 20574:9dc314de223d
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 }