boolean java.util.Optional.isEmpty()
boolean java.util.OptionalDouble.isEmpty()
boolean java.util.OptionalInt.isEmpty()
boolean java.util.OptionalLong.isEmpty()
double java.util.OptionalDouble.orElseThrow()
java.lang.Object java.util.Optional.orElseThrow()
java.util.stream.DoubleStream java.util.OptionalDouble.stream()
java.util.stream.IntStream java.util.OptionalInt.stream()
java.util.stream.LongStream java.util.OptionalLong.stream()
java.util.stream.Stream java.util.stream.Stream.ofNullable(java.lang.Object)
java.util.stream.Stream java.util.Optional.stream()
java.util.Optional java.util.Optional.or(java.util.function.Supplier)
int java.util.OptionalInt.orElseThrow()
long java.util.OptionalLong.orElseThrow()
void java.util.Optional.ifPresentOrElse(java.util.function.Consumer, java.lang.Runnable)
void java.util.OptionalDouble.ifPresentOrElse(java.util.function.DoubleConsumer, java.lang.Runnable)
void java.util.OptionalInt.ifPresentOrElse(java.util.function.IntConsumer, java.lang.Runnable)
void java.util.OptionalLong.ifPresentOrElse(java.util.function.LongConsumer, java.lang.Runnable)