Implicit conversion using as from JsLookupResult to List[Map[String, JsValue]] error

Question

I have this scala code which parses json and gets notifiers object from jsonValue.

object App {
  def main(args: Array[String]) {
    val json = 
      """{
         "notifiers":[
            {
               "type":"url",
               "attributes":{
                  "msg":"Hello world!"
               }
            }
         ],
         "filters":[],
         "position":{}
      }"""
    val jsonValue: JsValue = Json.parse(json)
    (jsonValue \ "notifiers").as[List[Map[String, JsValue]]]
  }
}

Why I am getting this error on last line?

Multiple markers at this line: - Line breakpoint:App [line: 25] - App - Implicit conversion found: jsonValue ⇒ jsValueToJsLookup(jsonValue): play.api.libs.json.JsLookup - bad symbolic reference. A signature in DefaultReads.class refers to term time in package java which is not available. It may be completely missing from the current classpath, or the version on the classpath might be incompatible with the version used when compiling DefaultReads.class.

Using Scala 2.10.6 and this project is a maven module with com.typesafe.play dependency

<dependency>
    <groupId>com.typesafe.play</groupId>
    <artifactId>play-json_2.10</artifactId>
    <version>2.4.6</version>
</dependency>

Ps. I have done the same in some other program where I'm using this .as (def as[T](implicit fjs: Reads[T]): T) to type convert from JsLookupResult into List[Map[String, JsValue]] with no errors.

Answer 1

Try using JDK 8 or a previous version of Play. Play 2.4 only supports JDK 8 (https://www.playframework.com/documentation/2.4.x/Migration24) - the error you're getting is about being unable to find member time in package java, which has been introduced since JDK 8.