Nanoseconds can be parsed incorrectly with JRuby 10:

require "time"

t = Time.new("2025-04-20T23:20:13.789698000Z")
p t
p t.nsec

Environment Information

• jruby 10.0.0.0 (3.4.2) 2025-04-13 6ed59bc OpenJDK 64-Bit Server VM 21.0.6 on 21.0.6 +indy +jit [arm64-darwin]
• macOS 15.4.1 arm64

Expected Behavior

CRuby 3.4.2 output

2025-04-20 23:20:13.789698 UTC
789698000

Actual Behavior

JRuby 10.0.0.0 output

2025-04-20 23:20:13.000007896 +0000
7896