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