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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, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  package org.apache.hadoop.hbase.metrics;
19  
20  import java.lang.annotation.Retention;
21  import java.lang.annotation.RetentionPolicy;
22  import org.apache.hadoop.hbase.classification.InterfaceAudience;
23  
24  /**
25   * This is a dummy annotation that forces javac to produce output for
26   * otherwise empty package-info.java.
27   *
28   * <p>The result is maven-compiler-plugin can properly identify the scope of
29   * changed files
30   *
31   * <p>See more details in
32   * <a href="https://jira.codehaus.org/browse/MCOMPILER-205">
33   *   maven-compiler-plugin: incremental compilation broken</a>
34   */
35  @InterfaceAudience.Private
36  @Retention(RetentionPolicy.SOURCE)
37  public @interface PackageMarker {
38  }