File: TestClone.java

package info (click to toggle)
openjdk-11 11.0.28%2B6-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 781,124 kB
  • sloc: java: 5,208,481; xml: 1,192,267; cpp: 1,138,346; ansic: 461,925; javascript: 162,416; sh: 16,738; objc: 13,729; python: 4,757; asm: 3,570; makefile: 2,965; perl: 357; awk: 351; sed: 172; jsp: 24; csh: 3
file content (168 lines) | stat: -rw-r--r-- 5,199 bytes parent folder | download | duplicates (9)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
/*
 * Copyright (c) 2014, 2020, 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.
 */

/*
 * @test
 * @bug 8033626 8246453
 * @summary assert(ex_map->jvms()->same_calls_as(_exceptions->jvms())) failed: all collected exceptions must come from the same place
 * @modules java.base/jdk.internal.misc
 * @library /test/lib
 *
 * @run main/othervm -XX:-TieredCompilation -Xbatch
 *      -XX:CompileCommand=compileonly,compiler.intrinsics.object.TestClone::test*
 *      compiler.intrinsics.object.TestClone
 * @run main/othervm -XX:-TieredCompilation -Xbatch
 *      -XX:+IgnoreUnrecognizedVMOptions -XX:+StressReflectiveCode
 *      -XX:CompileCommand=compileonly,compiler.intrinsics.object.TestClone::test*
 *      compiler.intrinsics.object.TestClone
 */

package compiler.intrinsics.object;

import jdk.test.lib.Asserts;

abstract class MyAbstract {

    public Object myClone1() throws CloneNotSupportedException {
        return this.clone();
    }

    public Object myClone2() throws CloneNotSupportedException {
        return this.clone();
    }

    public Object myClone3() throws CloneNotSupportedException {
        return this.clone();
    }
}

class MyClass1 extends MyAbstract {
    @Override
    public Object clone() throws CloneNotSupportedException {
        return super.clone();
    }
}

class MyClass2 extends MyAbstract {

}

class MyClass3 extends MyAbstract implements Cloneable {
    @Override
    public Object clone() throws CloneNotSupportedException {
        return super.clone();
    }
}

class MyClass4 extends MyAbstract implements Cloneable {

}

public class TestClone implements Cloneable {
    static class A extends TestClone {}
    static class B extends TestClone {
        public B clone() {
            return (B)TestClone.b;
        }
    }
    static class C extends TestClone {
        public C clone() {
            return (C)TestClone.c;
        }
    }
    static class D extends TestClone {
        public D clone() {
            return (D)TestClone.d;
        }
    }
    static TestClone a = new A(), b = new B(), c = new C(), d = new D();

    public static Object test1(TestClone o) throws CloneNotSupportedException {
        // Polymorphic call site: >90% Object::clone / <10% other methods
        return o.clone();
    }

    public static void test2(MyAbstract obj, boolean shouldThrow) throws Exception {
       try {
            obj.myClone1();
        } catch (Exception e) {
            return; // Expected
        }
        Asserts.assertFalse(shouldThrow, "No exception thrown");
    }

    public static void test3(MyAbstract obj, boolean shouldThrow) throws Exception {
       try {
            obj.myClone2();
        } catch (Exception e) {
            return; // Expected
        }
        Asserts.assertFalse(shouldThrow, "No exception thrown");
    }

    public static void test4(MyAbstract obj, boolean shouldThrow) throws Exception {
       try {
            obj.myClone3();
        } catch (Exception e) {
            return; // Expected
        }
        Asserts.assertFalse(shouldThrow, "No exception thrown");
    }

    public static void main(String[] args) throws Exception {
        TestClone[] params1 = {a, a, a, a, a, a, a, a, a, a, a,
                               a, a, a, a, a, a, a, a, a, a, a,
                               a, a, a, a, a, a, a, a, a, a, a,
                               b, c, d};

        MyClass1 obj1 = new MyClass1();
        MyClass2 obj2 = new MyClass2();
        MyClass3 obj3 = new MyClass3();
        MyClass4 obj4 = new MyClass4();

        for (int i = 0; i < 15000; i++) {
            test1(params1[i % params1.length]);

            test2(obj1, true);
            test2(obj2, true);

            test3(obj3, false);
            test3(obj2, true);

            test4(obj3, false);
            test4(obj4, false);
        }

        Asserts.assertTrue(test1(a) != a);
        Asserts.assertTrue(test1(b) == b);
        Asserts.assertTrue(test1(c) == c);
        Asserts.assertTrue(test1(d) == d);

        try {
            test1(null);
            throw new AssertionError("No exception thrown");
        } catch (NullPointerException e) { /* expected */ }

        System.out.println("TEST PASSED");
    }
}