Method entryOf

guava/src/com/google/common/collect/ImmutableMap.java:344–346

Verifies that {@code key} and {@code value} are non-null, and returns a new immutable entry with those values. <p>A call to {@link Entry#setValue} on the returned entry will always throw {@link UnsupportedOperationException}.

(K key, V value)

   * UnsupportedOperationException}.
   */
  static <K, V> Entry<K, V> entryOf(K key, V value) {
    return new ImmutableMapEntry<>(key, value);
  }

  /**
   * Returns a new builder. The generated builder is equivalent to the builder created by the {@link