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1   /*
2    * Copyright 2016 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package io.netty.handler.ssl;
17  
18  import io.netty.buffer.ByteBufHolder;
19  
20  /**
21   * A marker interface for PEM encoded values.
22   */
23  interface PemEncoded extends ByteBufHolder {
24  
25      /**
26       * Returns {@code true} if the PEM encoded value is considered
27       * sensitive information such as a private key.
28       */
29      boolean isSensitive();
30  
31      @Override
32      PemEncoded copy();
33  
34      @Override
35      PemEncoded duplicate();
36      @Override
37      PemEncoded retain();
38  
39      @Override
40      PemEncoded retain(int increment);
41  }