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.eclipse.aether.named.support;
20
21 /**
22 * Exception thrown when lock upgrade attempted that we do not support. This exception when used within {@link Retry}
23 * helper should never be reattempted, hence is marked with {@link Retry.DoNotRetry} marker.
24 *
25 * @since 1.9.13
26 */
27 public final class LockUpgradeNotSupportedException extends RuntimeException implements Retry.DoNotRetry {
28 /**
29 * Constructor for case, when current thread attempts lock upgrade on given lock instance.
30 */
31 public LockUpgradeNotSupportedException(NamedLockSupport namedLock) {
32 super("Thread " + Thread.currentThread().getName()
33 + " already holds shared lock for '" + namedLock.name()
34 + "', but asks for exclusive lock; lock upgrade not supported");
35 }
36 }