1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 public class Main {
main(String args[])18   public static void main(String args[]) {
19     simpleTest();
20     hierarchyTest();
21   }
22 
simpleTest()23   public static void simpleTest() {
24     // Partial initialization of Bad; ignoring the error.
25     Error badClinit = null;
26     try {
27       new Bad(11);
28     } catch (Error e) {
29       badClinit = e;
30     }
31     // Call foo() on the escaped instance of Bad.
32     try {
33       bad.foo();
34     } catch (NoClassDefFoundError ncdfe) {
35       // On RI, the NCDFE has no cause. On ART, the badClinit is the cause.
36       if (ncdfe.getCause() == badClinit || ncdfe.getCause() == null) {
37         System.out.println("Caught NoClassDefFoundError.");
38       } else {
39         ncdfe.printStackTrace();
40       }
41     }
42     // Call bar() on the escaped instance of Bad.
43     try {
44       bad.bar();
45     } catch (NoClassDefFoundError ncdfe) {
46       // On RI, the NCDFE has no cause. On ART, the badClinit is the cause.
47       if (ncdfe.getCause() == badClinit || ncdfe.getCause() == null) {
48         System.out.println("Caught NoClassDefFoundError.");
49       } else {
50         ncdfe.printStackTrace();
51       }
52     }
53   }
54 
hierarchyTest()55   public static void hierarchyTest() {
56     // Partial initialization of BadSuper; ignoring the error. Fully initializes BadSub.
57     Error badClinit = null;
58     try {
59       new BadSuper(0);
60     } catch (Error e) {
61       badClinit = e;
62     }
63     // Call BadSuper.foo() on the escaped instance of BadSuper.
64     try {
65       badSuper.foo();
66     } catch (NoClassDefFoundError ncdfe) {
67       // On RI, the NCDFE has no cause. On ART, the badClinit is the cause.
68       if (ncdfe.getCause() == badClinit || ncdfe.getCause() == null) {
69         System.out.println("Caught NoClassDefFoundError.");
70       } else {
71         ncdfe.printStackTrace();
72       }
73     }
74 
75     // Call BadSub.bar() on the escaped instance of BadSub.
76     try {
77       badSub.bar();
78     } catch (NoClassDefFoundError ncdfe) {
79       // On RI, the NCDFE has no cause. On ART, the badClinit is the cause.
80       if (ncdfe.getCause() == badClinit || ncdfe.getCause() == null) {
81         System.out.println("Caught NoClassDefFoundError.");
82       } else {
83         ncdfe.printStackTrace();
84       }
85     }
86 
87     // Test that we can even create instances of BadSub with erroneous superclass BadSuper.
88     try {
89       new BadSub(-1, -2).bar();
90     } catch (NoClassDefFoundError ncdfe) {
91       // On RI, the NCDFE has no cause. On ART, the badClinit is the cause.
92       if (ncdfe.getCause() == badClinit || ncdfe.getCause() == null) {
93         System.out.println("Caught NoClassDefFoundError.");
94       } else {
95         ncdfe.printStackTrace();
96       }
97     }
98 
99     // Test that we cannot create instances of BadSuper from BadSub.
100     try {
101       badSub.allocSuper(11111);  // Should throw.
102       System.out.println("Allocated BadSuper!");
103     } catch (NoClassDefFoundError ncdfe) {
104       // On RI, the NCDFE has no cause. On ART, the badClinit is the cause.
105       if (ncdfe.getCause() == badClinit || ncdfe.getCause() == null) {
106         System.out.println("Caught NoClassDefFoundError.");
107       } else {
108         ncdfe.printStackTrace();
109       }
110     }
111   }
112 
113   public static Bad bad;
114 
115   public static BadSuper badSuper;
116   public static BadSub badSub;
117 }
118 
119 class Bad {
120   static {
121     // Create an instance of Bad and let it escape in Main.bad.
122     Main.bad = new Bad(33);
123     staticValue = 42;
124     if (true) { throw new Error("Bad <clinit>"); }
125   }
foo()126   public void foo() {
127     System.out.println("Bad.foo()");
128     System.out.println("Bad.instanceValue = " + instanceValue);
129     System.out.println("Bad.staticValue = " + staticValue);
130   }
bar()131   public void bar() {
132     System.out.println("Bad.bar()");
133     System.out.println("Bad.staticValue [indirect] = " + Helper.$inline$getBadStaticValue());
134   }
Bad(int iv)135   public Bad(int iv) { instanceValue = iv; }
136   public int instanceValue;
137   public static int staticValue;
138 
139   public static class Helper {
$inline$getBadStaticValue()140     public static int $inline$getBadStaticValue() {
141       return Bad.staticValue;
142     }
143   }
144 }
145 
146 class BadSuper {
147   static {
148     Main.badSuper = new BadSuper(1);
149     Main.badSub = new BadSub(11, 111);  // Fully initializes BadSub.
150     BadSuper.superStaticValue = 42;
151     BadSub.subStaticValue = 4242;
152     if (true) { throw new Error("Bad <clinit>"); }
153   }
foo()154   public void foo() {
155     System.out.println("BadSuper.foo()");
156     System.out.println("BadSuper.superInstanceValue = " + superInstanceValue);
157     System.out.println("BadSuper.superStaticValue = " + superStaticValue);
158   }
BadSuper(int superiv)159   public BadSuper(int superiv) { superInstanceValue = superiv; }
160   public int superInstanceValue;
161   public static int superStaticValue;
162 }
163 
164 // Note: If we tried to initialize BadSub before BadSuper, it would end up erroneous
165 // because the superclass fails initialization. However, since we start initializing the
166 // BadSuper first, BadSub is initialized successfully while BadSuper is "initializing"
167 // and remains initialized after the BadSuper's class initializer throws.
168 class BadSub extends BadSuper {
bar()169   public void bar() {
170     System.out.println("BadSub.bar()");
171     System.out.println("BadSub.subInstanceValue = " + subInstanceValue);
172     System.out.println("BadSub.subStaticValue = " + subStaticValue);
173     System.out.println("BadSuper.superInstanceValue = " + superInstanceValue);
174     System.out.println("BadSuper.superStaticValue = " + superStaticValue);
175   }
allocSuper(int superiv)176   public BadSuper allocSuper(int superiv) {
177     System.out.println("BadSub.allocSuper(.)");
178     return new BadSuper(superiv);
179   }
BadSub(int subiv, int superiv)180   public BadSub(int subiv, int superiv) {
181     super(superiv);
182     subInstanceValue = subiv;
183   }
184   public int subInstanceValue;
185   public static int subStaticValue;
186 }
187