1 /*
2  * Copyright (c) 2013, 2016, 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 import java.io.*;
25 import java.util.*;
26 import javax.annotation.processing.*;
27 import javax.lang.model.*;
28 import javax.lang.model.element.*;
29 import javax.tools.*;
30 
31 import com.sun.tools.classfile.*;
32 import com.sun.tools.classfile.ConstantPool.CONSTANT_Class_info;
33 import com.sun.tools.classfile.ConstantPool.CONSTANT_Utf8_info;
34 import com.sun.tools.classfile.ConstantPool.CPInfo;
35 
36 /* Create an invalid classfile with version 51.0 and a static method in an interface.*/
37 @SupportedAnnotationTypes("*")
38 public class CreateBadClassFile extends AbstractProcessor {
process(Set<? extends TypeElement> elems, RoundEnvironment renv)39     public boolean process(Set<? extends TypeElement> elems, RoundEnvironment renv) {
40         if (++round == 1) {
41             ConstantPool cp = new ConstantPool(new CPInfo[] {
42                 new CONSTANT_Utf8_info(""),                     //0
43                 new CONSTANT_Utf8_info("Test"),                 //1
44                 new CONSTANT_Class_info(null, 1),               //2
45                 new CONSTANT_Utf8_info("java/lang/Object"),     //3
46                 new CONSTANT_Class_info(null, 3),               //4
47                 new CONSTANT_Utf8_info("test"),                 //5
48                 new CONSTANT_Utf8_info("()V"),                  //6
49             });
50             ClassFile cf = new ClassFile(0xCAFEBABE,
51                           0,
52                           51,
53                           cp,
54                           new AccessFlags(AccessFlags.ACC_ABSTRACT |
55                                           AccessFlags.ACC_INTERFACE |
56                                           AccessFlags.ACC_PUBLIC),
57                           2,
58                           4,
59                           new int[0],
60                           new Field[0],
61                           new Method[] {
62                               //creating static method in 51.0 classfile:
63                               new Method(new AccessFlags(AccessFlags.ACC_PUBLIC |
64                                                          AccessFlags.ACC_STATIC),
65                                          5,
66                                          new Descriptor(6),
67                                          new Attributes(cp, new Attribute[0]))
68                           },
69                           new Attributes(cp, new Attribute[0]));
70             try {
71                 JavaFileObject clazz = processingEnv.getFiler().createClassFile("Test");
72                 try (OutputStream out = clazz.openOutputStream()) {
73                     new ClassWriter().write(cf, out);
74                 }
75             } catch (IOException ex) {
76                 ex.printStackTrace();
77             }
78         }
79         return false;
80     }
81 
getSupportedSourceVersion()82     public SourceVersion getSupportedSourceVersion() {
83         return SourceVersion.latest();
84     }
85 
86     int round = 0;
87 }
88