1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   https://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.bcel.verifier.exc;
20  
21  /**
22   * Instances of this class are thrown by BCEL's class file verifier "JustIce" when a class file to verify does not pass
23   * the verification pass 3 because of a violation of a structural constraint as described in the Java Virtual Machine
24   * Specification, 2nd edition, 4.8.2, pages 137-139. Note that the notion of a "structural" constraint is somewhat
25   * misleading. Structural constraints are constraints on relationships between Java virtual machine instructions. These
26   * are the constraints where data-flow analysis is needed to verify if they hold. The data flow analysis of pass 3 is
27   * called pass 3b in JustIce.
28   */
29  public class StructuralCodeConstraintException extends CodeConstraintException {
30      private static final long serialVersionUID = 5406842000007181420L;
31  
32      /**
33       * Constructs a new StructuralCodeConstraintException with null as its error message string.
34       */
35      public StructuralCodeConstraintException() {
36      }
37  
38      /**
39       * Constructs a new StructuralCodeConstraintException with the specified error message.
40       */
41      public StructuralCodeConstraintException(final String message) {
42          super(message);
43      }
44  }