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POserializing and deserializing a json object through Lift-JSON
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copied!<p>I have a exception from lift-json when I want to deserialize a json string. (using v2M1).</p> <p>Basically I have the following class:</p> <pre><code>@BeanInfo case class Game(val id:Int, val bad:Map[String,Plan], val good:Map[String,Plan]) </code></pre> <p>and I am using </p> <pre><code>net.liftweb.json.Serialization.read[Game](jsonInString) </code></pre> <p>to deserialize the jsonInString into a Game case class. Unfortunately I am getting the following error:</p> <pre><code>net.liftweb.json.MappingException: Can't find primary constructor for class interface scala.collection.immutable.Map at net.liftweb.json.Meta$.fail(Meta.scala:93) at net.liftweb.json.Meta$Reflection$$anonfun$primaryConstructorOf$1.apply(Meta.scala:129) at net.liftweb.json.Meta$Reflection$$anonfun$primaryConstructorOf$1.apply(Meta.scala:129) at scala.Option.getOrElse(Option.scala:61) at net.liftweb.json.Meta$Reflection$.primaryConstructorOf(Meta.scala:129) at net.liftweb.json.Extraction$.newInstance$1(Extraction.scala:106) at net.liftweb.json.Extraction$.build$1(Extraction.scala:119) at net.liftweb.json.Extraction$$anonfun$2$$anonfun$apply$1.apply(Extraction.scala:119) at net.liftweb.json.Extraction$$anonfun$2$$anonfun$apply$1.apply(Extraction.scala:119) at scala.List.flatMap(List.scala:1132) at net.liftweb.json.Extraction$$anonfun$2.apply(Extraction.scala:119) at net.liftweb.json.Extraction$$anonfun$2.apply(Extraction.scala:119) at net.liftweb.json.Extraction$.newInstance$1(Extraction.scala:106) at net.liftweb.json.Extraction$.build$1(Extraction.scala:119) at net.liftweb.json.Extraction$.extract0(Extraction.scala:154) at net.liftweb.json.Extraction$.extract(Extraction.scala:37) at net.liftweb.json.JsonAST$JValue.extract(JsonAST.scala:247) at net.liftweb.json.Serialization$.read(Serialization.scala:50) </code></pre> <p>I appreciate your comments, Thanks, -A</p> <p>PS - I tried v2M2 (snapshot @ 10 Feb, 2010 from Scala-tools.org), the exception gone but the serialization is not correct ! See the comments below.</p>

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