content: /*
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
   ~                                                                               ~
   ~ The MIT License (MIT)                                                         ~
   ~                                                                               ~
   ~ Copyright (c) 2015-2025 miaixz.org gitlab4j and other contributors.           ~
   ~                                                                               ~
   ~ Permission is hereby granted, free of charge, to any person obtaining a copy  ~
   ~ of this software and associated documentation files (the "Software"), to deal ~
   ~ in the Software without restriction, including without limitation the rights  ~
   ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell     ~
   ~ copies of the Software, and to permit persons to whom the Software is         ~
   ~ furnished to do so, subject to the following conditions:                      ~
   ~                                                                               ~
   ~ The above copyright notice and this permission notice shall be included in    ~
   ~ all copies or substantial portions of the Software.                           ~
   ~                                                                               ~
   ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR    ~
   ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,      ~
   ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE   ~
   ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER        ~
   ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ~
   ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN     ~
   ~ THE SOFTWARE.                                                                 ~
   ~                                                                               ~
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
  */
  package org.miaixz.bus.gitlab.support;
  
  import java.util.Arrays;
  
  /**
   * This class implements a CharSequence that can be cleared of it's contained characters. This class is utilized to pass
   * around secrets (passwords) instead of a String instance.
   */
  public class SecretString implements CharSequence, AutoCloseable {
  
      private final char[] chars;
  
      public SecretString(CharSequence charSequence) {
  
          int length = charSequence.length();
          chars = new char[length];
          for (int i = 0; i < length; i++) {
              chars[i] = charSequence.charAt(i);
          }
      }
  
      public SecretString(char[] chars) {
          this(chars, 0, chars.length);
      }
  
      public SecretString(char[] chars, int start, int end) {
          this.chars = new char[end - start];
          System.arraycopy(chars, start, this.chars, 0, this.chars.length);
      }
  
      @Override
      public char charAt(int index) {
          return chars[index];
      }
  
      @Override
      public void close() {
          clear();
      }
  
      @Override
      public int length() {
          return chars.length;
      }
  
      @Override
      public CharSequence subSequence(int start, int end) {
          return new SecretString(this.chars, start, end);
      }
  
      /**
       * Clear the contents of this SecretString instance by setting each character to 0. This is automatically done in
       * the finalize() method.
       */
      public void clear() {
          Arrays.fill(chars, '\0');
      }
  
      @Override
      public void finalize() throws Throwable {
          clear();
          super.finalize();
      }
  
  }
  