* </p>
     * <ul>
     *   <li>Main resources with {@code targetPath="META-INF"} are copied to {@code target/classes/META-INF}</li>
     *   <li>Test resources with {@code targetPath="test-data"} are copied to {@code target/test-classes/test-data}</li>
     *   <li>Resources without an explicit {@code targetPath} are copied to the root of the output directory</li>
     * </ul>
     * <p>

# This file is used as part of a matrix build in Jenkins where the
# values below are included as an axis of the matrix.

# This axis of the build matrix represents the versions of Java on
# which Elasticsearch will be tested.  Valid Java versions are 'java'
# or 'openjdk' followed by the major release number.

ES_RUNTIME_JAVA:
  - java11
  - openjdk16
  - zulu11
  - corretto11
  - adoptopenjdk11

     */
    protected Map<String, QueryCommand> queryCommandMap = new HashMap<>();

    /**
     * List of filters that will be applied during query processing.
     * Filters are applied in the order they are added to this list.
     */
    protected List<Filter> filterList = new ArrayList<>();

    /**
     * The filter chain that processes queries through all registered filters

  /**
   * Adds {@code equalityGroup} with objects that are supposed to be equal to each other and not
   * equal to any other equality groups added to this tester.
   *
   * <p>The {@code @Nullable} annotations on the {@code equalityGroup} parameter imply that the
   * objects, and the array itself, can be null. That is for programmer convenience, when the
   * objects come from factory methods that are themselves {@code @Nullable}. In reality neither the

    NOT_READY,

    /** We have reached the end of the data and are finished. */
    DONE,

    /** We've suffered an exception and are kaput. */
    FAILED,
  }

  private @Nullable T next;

  /**
   * Returns the next element. <b>Note:</b> the implementation must call {@link #endOfData()} when
   * there are no elements left in the iteration. Failure to do so could result in an infinite loop.
   *

Copyright ©2013 The gonum Authors. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright

Copyright <YEAR> <COPYRIGHT HOLDER>

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the

Copyright 2009 The Go Authors.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

   * Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer

    }

    /**
     * Returns all methods that are applicable to actual argument types.
     *
     * @param methods list of all candidate methods
     * @param classes the actual types of the arguments
     * @return a list that contains only applicable methods (number of
     *         formal and actual arguments matches, and argument types are assignable

   * safe to do so. The exact circumstances under which a copy will or will not be performed are
   * undocumented and subject to change.
   *
   * <p>This method is not type-safe, as it may be called on elements that are not mutually
   * comparable.
   *
   * @throws ClassCastException if the elements are not mutually comparable
   * @throws NullPointerException if any of {@code elements} is null
   */