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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   *   http://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.maven.project;
20  
21  import org.apache.maven.artifact.Artifact;
22  
23  /**
24   * This exception is thrown if an application attempts to attach
25   * two of the same artifacts to a single project.
26   *
27   * TODO Make this a checked exception, and modify the API of MavenProjectHelper.
28   * Currently, this modification would create compatibility problems for existing plugins.
29   */
30  public class DuplicateArtifactAttachmentException extends RuntimeException {
31  
32      private static final String DEFAULT_MESSAGE = "Duplicate artifact attachment detected.";
33  
34      private Artifact artifact;
35  
36      private final MavenProject project;
37  
38      public DuplicateArtifactAttachmentException(MavenProject project, Artifact artifact) {
39          super(constructMessage(project, artifact));
40          this.project = project;
41          this.artifact = artifact;
42      }
43  
44      private static String constructMessage(MavenProject project, Artifact artifact) {
45          return DEFAULT_MESSAGE + " (project: " + project.getId() + "; illegal attachment: " + artifact.getId() + ")";
46      }
47  
48      public MavenProject getProject() {
49          return project;
50      }
51  
52      public Artifact getArtifact() {
53          return artifact;
54      }
55  }