Ouch. This affects JRuby, and potentially anyone with a JSON-based API running on the JVM with a JSON parser using the java stdlib to parse JSON floats: j

Ouch. This affects JRuby, and potentially anyone with a JSON-based API running on the JVM with a JSON parser using the java stdlib to parse JSON floats: jruby-1.5.2 > JSON.parse('{"float": 2.2250738585072012e-308}') ^C^C^C^C^C^C ^C^C^C (not the most recent JRuby I know, but seems this is a JVM problem...)