1 package org.eclipse.aether;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.util.List;
23
24 import static java.util.Objects.requireNonNull;
25
26 /**
27 * Runtime exception to be thrown when multiple actions were executed and one or more failed. To be used when no
28 * fallback on resolver side is needed or is possible.
29 *
30 * @since 1.9.0
31 */
32 public final class MultiRuntimeException
33 extends RuntimeException
34 {
35 private final List<? extends Throwable> throwables;
36
37 private MultiRuntimeException( String message, List<? extends Throwable> throwables )
38 {
39 super( message );
40 this.throwables = throwables;
41 for ( Throwable throwable : throwables )
42 {
43 addSuppressed( throwable );
44 }
45 }
46
47 /**
48 * Returns the list of throwables that are wrapped in this exception.
49 *
50 * @return The list of throwables, never {@code null}.
51 */
52 public List<? extends Throwable> getThrowables()
53 {
54 return throwables;
55 }
56
57 /**
58 * Helper method that receives a (non-null) message and (non-null) list of throwable, and following happens:
59 * <ul>
60 * <li>if list is empty - nothing</li>
61 * <li>if list not empty - {@link MultiRuntimeException} is thrown wrapping all elements</li>
62 * </ul>
63 */
64 public static void mayThrow( String message, List<? extends Throwable> throwables )
65 {
66 requireNonNull( message );
67 requireNonNull( throwables );
68
69 if ( !throwables.isEmpty() )
70 {
71 throw new MultiRuntimeException( message, throwables );
72 }
73 }
74 }