no value for read throws IllegalArgumentException

[jack-kerouac]

When trying to read a non-existing value from a time series (whether the series is empty, or trying to read a value before the first one in the series or after the last one), the following exception is thrown:

Exception in thread "main" java.lang.IllegalArgumentException: Unknown class: class com.tempodb.SingleValue
    at com.tempodb.Result.newInstanceFromResponse(Result.java:160)
    at com.tempodb.Result.<init>(Result.java:78)
    at com.tempodb.Client.execute(Client.java:1208)
    at com.tempodb.Client.readSingleValue(Client.java:472)
    at com.tempodb.Client.readSingleValue(Client.java:401)
    at com.tempodb.Client$readSingleValue.call(Unknown Source)
    at com.tado.tsds.tempodb.TempoDbMain.main(TempoDbMain.groovy:112)
Caused by: java.lang.reflect.InvocationTargetException
    at com.tempodb.Result.newInstanceFromResponse(Result.java:153)
    ... 25 more
Caused by: java.lang.NullPointerException
    at com.tempodb.util.Preconditions.checkNotNull(Preconditions.java:27)
    at com.tempodb.SingleValue.<init>(SingleValue.java:43)
    at com.tempodb.json.SingleValueModule$SingleValueDeserializer.deserialize(SingleValueModule.java:65)
    at com.tempodb.json.SingleValueModule$SingleValueDeserializer.deserialize(SingleValueModule.java:30)
    at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:1216)
    at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:830)
    at com.tempodb.json.Json.loads(Json.java:46)
    at com.tempodb.SingleValue.make(SingleValue.java:78)
    ... 30 more

I believe that the result should signal that instead of this strange exception.