Serialize a Map[String, Any] to JSON where Any includes BigDecimal

Question

Using Scala 2.10 and json4s 3.5.0, I am trying to serialize a map to a JSON string. For example:

implicit val formats = org.json4s.DefaultFormats.withBigDecimal
println(Serialization.write(Map("key" -> new java.math.BigDecimal(1)))

Fails with:

java.lang.RuntimeException: not a primitive class java.math.BigDecimal

I followed [https://stackoverflow.com/a/27847784/901330] but the BigDecimal appears to break it. How do I do this serialization?

Mapping `Any` is generally a (very) bad idea – cchantep Jan 24 '17 at 19:31 — cchantep, Jan 24 '17 at 19:31

score 1 · Answer 1 · answered Jan 24 '17 at 19:35

1

org.json4s.BigDecimalJsonFormats works for scala.math.BigDecimal (Scala BigDecimal) not the Java BigDecimal (java.math.BigDecimal)

So, use BigDecimal(1) (Scala BigDecimal)

answered Jan 24 '17 at 19:35

Nagarjuna Pamu

1 Answers1