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Java > Open Source Codes > org > apache > bcel > verifier > exc > StructuralCodeConstraintException


1 /*
2  * Copyright 2000-2004 The Apache Software Foundation
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 package org.apache.bcel.verifier.exc;
18
19 /**
20  * Instances of this class are thrown by BCEL's class file verifier "JustIce" when
21  * a class file to verify does not pass the verification pass 3 because of a violation
22  * of a structural constraint as described in the Java Virtual Machine Specification,
23  * 2nd edition, 4.8.2, pages 137-139.
24  * Note that the notion of a "structural" constraint is somewhat misleading. Structural
25  * constraints are constraints on relationships between Java virtual machine instructions.
26  * These are the constraints where data-flow analysis is needed to verify if they hold.
27  * The data flow analysis of pass 3 is called pass 3b in JustIce.
28  *
29  * @version $Id: StructuralCodeConstraintException.java 371539 2006-01-23 14:08:00Z tcurdt $
30  * @author Enver Haase
31  */
32 public class StructuralCodeConstraintException extends CodeConstraintException{
33     /**
34      * Constructs a new StructuralCodeConstraintException with the specified error message.
35      */
36     public StructuralCodeConstraintException(String JavaDoc message){
37         super(message);
38     }
39     /**
40      * Constructs a new StructuralCodeConstraintException with null as its error message string.
41      */
42     public StructuralCodeConstraintException(){
43         super();
44     }
45 }
46
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