[Nashorn] JavaImporterでまとめてimportする

function getKeys(obj) { var keys = []; for (var key in obj) keys.push(key); return keys; }

var importerOfJavaTime = new JavaImporter(java.time, java.time.temporal);

print("Object.keys=" + Object.keys(importerOfJavaTime));

var now = importerOfJavaTime.LocalDateTime.now();

print(now.getClass() + "=${now}");

print("Object.keys=" + Object.keys(importerOfJavaTime));

with(importerOfJavaTime) {

    var dateTime = LocalDateTime.of(1999, 12, 31, 23, 59, 59);

    print("");

    print("dateTime=" + dateTime);

    print("dateTime.plusDays(1)=" + dateTime.plusDays(1));

    print("dateTime.truncatedTo(ChronoUnit.HOURS)=" + dateTime.truncatedTo(ChronoUnit.HOURS));

}

print("Object.keys=" + Object.keys(importerOfJavaTime));

print("");

print("importerOfJavaTime.BadClassName=${importerOfJavaTime.BadClassName}"); // null

with(importerOfJavaTime){ print("BadClassName=${BadClassName}"); } // null

print("java.time.BadClassName=${java.time.BadClassName}"); // [object JavaPackage]

try {

    var obj = new java.time.BadClassName();

} catch (e) {

    print(e); // java.lang.ClassNotFoundException

}

>jjs -scripting -fullversion javaImporter.js

nashorn full version 1.8.0_66-b18

Object.keys=

class java.time.LocalDateTime=2015-12-13T21:34:08.075

Object.keys=LocalDateTime

dateTime=1999-12-31T23:59:59

dateTime.plusDays(1)=2000-01-01T23:59:59

dateTime.truncatedTo(ChronoUnit.HOURS)=1999-12-31T23:00

Object.keys=LocalDateTime,ChronoUnit

importerOfJavaTime.BadClassName=null

BadClassName=null

java.time.BadClassName=[object JavaPackage]

java.lang.ClassNotFoundException: java.time.BadClassName