Caused by: java.lang.InstantiationException: scala.Some at java.lang.Class.newInstance0(Class.java:357) at java.lang.Class.newInstance(Class.java:325) at com.esotericsoftware.kryo.Kryo.newInstance(Kryo.java:676) ... 12 more
思路是,转化成java基础类解决;
obj.asInstanceOf[Option[Any]] 这句简直要了亲命了,一开始在想尽办法想把这个generic的T找到,最后发现Any解决所有问题,对于scala的generic还是需要研究
def writeObjectData(buffer: ByteBuffer, obj: Object): Unit = { if (obj == None) { kryo.writeClassAndObject(buffer, None) } else { kryo.writeClassAndObject(buffer, obj.asInstanceOf[Option[Any]].get) } } def readObjectData[T](buffer: ByteBuffer, objType: java.lang.Class[T]): T = { val obj = kryo.readClassAndObject(buffer) if (obj == None) { None.asInstanceOf[T] } else { Some(obj).asInstanceOf[T] } }