private static Map<Integer, Integer> scalaIntsMapToJavaMap(scala.collection.Map<Object, Object> map) {
return (Map<Integer, Integer>) JavaConverters.mapAsJavaMapConverter(map);
}
当我在 sbt 中运行这个 Java 文件时,我得到了以下异常。
Exception in thread "main" java.lang.ClassCastException: scala.collection.convert.Decorators$AsJava cannot be cast to java.util.Map
at SomeClass.scalaIntsMapToJavaMap(SomeClass.java:92)
at SomeClass.main(SomeClass.java:57)
java.lang.RuntimeException: Nonzero exit code returned from runner: 1
at scala.sys.package$.error(package.scala:27)