1 /*

     2  * Copyright (c) 2013, 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 com.sun.tools.classfile.*;

    25 import com.sun.tools.classfile.ConstantPool.CONSTANT_Class_info;

    26 import com.sun.tools.classfile.ConstantPool.CONSTANT_Utf8_info;

    27 import com.sun.tools.classfile.ConstantPool.CPInfo;

    28 import java.io.*;

    29 import java.util.*;

    30 import javax.annotation.processing.*;

    31 import javax.lang.model.*;

    32 import javax.lang.model.element.*;

    33 import javax.tools.*;

    34 

    35 /* Create an invalid classfile with version 51.0 and a static method in an interface.*/

    36 @SupportedAnnotationTypes("*")

    37 public class CreateBadClassFile extends AbstractProcessor {

    38     public boolean process(Set<? extends TypeElement> elems, RoundEnvironment renv) {

    39         if (++round == 1) {

    40             ConstantPool cp = new ConstantPool(new CPInfo[] {

    41                 new CONSTANT_Utf8_info(""),                     //0

    42                 new CONSTANT_Utf8_info("Test"),                 //1

    43                 new CONSTANT_Class_info(null, 1),               //2

    44                 new CONSTANT_Utf8_info("java/lang/Object"),     //3

    45                 new CONSTANT_Class_info(null, 3),               //4

    46                 new CONSTANT_Utf8_info("test"),                 //5

    47                 new CONSTANT_Utf8_info("()V"),                  //6

    48             });

    49             ClassFile cf = new ClassFile(0xCAFEBABE,

    50                           0,

    51                           51,

    52                           cp,

    53                           new AccessFlags(AccessFlags.ACC_ABSTRACT |

    54                                           AccessFlags.ACC_INTERFACE |

    55                                           AccessFlags.ACC_PUBLIC),

    56                           2,

    57                           4,

    58                           new int[0],

    59                           new Field[0],

    60                           new Method[] {

    61                               //creating static method in 51.0 classfile:

    62                               new Method(new AccessFlags(AccessFlags.ACC_PUBLIC |

    63                                                          AccessFlags.ACC_STATIC),

    64                                          5,

    65                                          new Descriptor(6),

    66                                          new Attributes(cp, new Attribute[0]))

    67                           },

    68                           new Attributes(cp, new Attribute[0]));

    69             try {

    70                 JavaFileObject clazz = processingEnv.getFiler().createClassFile("Test");

    71                 try (OutputStream out = clazz.openOutputStream()) {

    72                     new ClassWriter().write(cf, out);

    73                 }

    74             } catch (IOException ex) {

    75                 ex.printStackTrace();

    76             }

    77         }

    78         return false;

    79     }

    80 

    81     public SourceVersion getSupportedSourceVersion() {

    82         return SourceVersion.latest();

    83     }

    84 

    85     int round = 0;

    86 }