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Core YAML 1.2 parser and emitter for Java

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/*
 * Copyright (c) 2018, SnakeYAML
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
package org.snakeyaml.engine.v2.exceptions;

import java.util.Optional;

/**
 * Indicate duplicate keys in the same mapping during parsing
 */
public class DuplicateKeyException extends ConstructorException { // NOSONAR

  /**
   * Create
   *
   * @param contextMark - the context location
   * @param key - the data used as key more than once in the same mapping
   * @param problemMark - the problem location
   */
  public DuplicateKeyException(Optional contextMark, Object key, Optional problemMark) {
    super("while constructing a mapping", contextMark, "found duplicate key " + key.toString(),
        problemMark);
  }
}