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I’m trying to serialize scala case class to JSON string using Jerkson like this:
case class Page(title: String, id: String, ls: List[(String, String, Int)])
val pageList = new mutable.ArrayBuffer[Page]()
val jsonString = Json.generate(pageList)
pageList is extremely large with several million Page objects.
The call fails with this exception:
Caused by: org.codehaus.jackson.map.JsonMappingException:
[no message for java.lang.ArrayIndexOutOfBoundsException]
Given that you’ve got “several million” objects, I’m guessing you might be hitting the length limit of
String. Try generating to anOutputStream, ie,Json.generate(pageList, out).