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


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 constraint that is usually only verified at run-time (pass 4).
23  * The Java Virtual Machine Specification, 2nd edition, states that certain constraints
24  * are usually verified at run-time for performance reasons (the verification of those
25  * constraints requires loading in and recursively verifying referenced classes) that
26  * conceptually belong to pass 3; to be precise, that conceptually belong to the
27  * data flow analysis of pass 3 (called pass 3b in JustIce).
28  * These are the checks necessary for resolution: Compare pages 142-143 ("4.9.1 The
29  * Verification Process") and pages 50-51 ("2.17.3 Linking: Verification, Preparation,
30  * and Resolution") of the above mentioned book.
31  * <B>TODO: At this time, this class is not used in JustIce.</B>
32  *
33  * @version $Id: LinkingConstraintException.java 371539 2006-01-23 14:08:00Z tcurdt $
34  * @author Enver Haase
35  */
36 public class LinkingConstraintException extends StructuralCodeConstraintException{
37 }
38
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