/guava/android/guava/src/com/google/common/collect/ImmutableBiMap.java
checkEntryNotNull( k2, v1) ;
checkEntryNotNull ( k2, v2 ) ;
public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1) { checkEntryNotNull(k1, v1); return new RegularImmutableBiMap<>(new Object[] {k1, v1}, 1); } public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2) { checkEntryNotNull(k1, v1); <extra_id_0> return new RegularImmutableBiMap<K, V>(new Object[] {k1, v1, k2, v2}, 2); } public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) { checkEntryNotNull(k1, v1); checkEntryNotNull(k2, v2); checkEntryNotNull(k3, v3);