def numbers = $objectWrappers.wrap($arrays.arrayOf($plugins.loadClass("java.lang.Integer"), 1, 2, 3, 4, 5))
// 计算累积和, 累积和: [0, 1, 3, 6, 10, 15]
numbers.runningFold(0) { acc, element -> acc + element }.forEach {
    $console.log(it)
}