# New public API in 27, each exercised once (found by diffing javap dumps, see 51-api-diff-26-to-27.txt)
Math.acosh(2)  = 1.316958
Math.asinh(1)  = 0.881374
Math.atanh(.5) = 0.549306
CHECK ok   : acosh inverts cosh
"naïve café".length() = 10, encodedLength(UTF_8) = 12
CHECK ok   : encodedLength matches getBytes().length without allocating the array
BigDecimal(27).rootn(3) = 3
CHECK ok   : rootn(3) of 27 is 3
KeyStore.getCreationInstant("aes-key") returns an Instant: true
CHECK ok   : KeyStore.getCreationInstant returns the entry's creation time as a java.time.Instant
CHECK ok   : Set.ofLazy(Set, Predicate) exists (preview API)