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Apollo GraphQL API classes

There is a newer version: 4.1.0

package com.apollographql.apollo.api.internal;

import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;

public class UnmodifiableMapBuilder {
  private final Map map;

  public UnmodifiableMapBuilder(int initialCapacity) {
    this.map = new LinkedHashMap<>(initialCapacity);
  }

  public UnmodifiableMapBuilder() {
    this.map = new LinkedHashMap<>();
  }

  public UnmodifiableMapBuilder put(K key, V value) {
    map.put(key, value);
    return this;
  }

  public Map build() {
    return Collections.unmodifiableMap(map);
  }
}