如何将Java双冒号运算符（：:)转换为Scala？

Question

我想在我的ScalaTests中使用camunda-bpm-assert-scenario。

我在这里有以下代码receiveTask::receive：

when(documentRequest.waitsAtReceiveTask("ReceiveTaskWaitForDocuments")).thenReturn((receiveTask) -> {
  receiveTask.defer("P1DT1M", receiveTask::receive);
});

根据中的答案，是否可以在Scala中使用Java 8样式方法引用？我可以很容易地将其翻译为：

receiveTask.defer("P1D", receiveTask.receive _)

但这给了我：

Error:(84, 45) type mismatch;
 found   : Unit
 required: org.camunda.bpm.scenario.defer.Deferred
       receiveTask.defer("P1D", receiveTask.receive _)

这是receive功能：

void receive();

这是预期的接口：

public interface Deferred {
  void execute() throws Exception;
}

如何在Scala中实现这一目标？这不是Scala中可以使用Java 8样式方法引用的副本吗？，则无法解决“错误：（84，45）类型不匹配; ...”

Answer 1

After reading this stackoverflow answer, I could solve it to:

receiveTask.defer("P1D", new Deferred{
         def execute(): Unit = receiveTask.receive()
       })

Intellij proposed then to convert it to a Single Abstract Method:

receiveTask.defer("P1D", () => receiveTask.receive())

The problem was that receive had also an overloaded function that takes a parameter.