com.google.gson.JsonSyntaxException: java.text.ParseException: Unparseable date: "yyyy-mm-dd"

Question

Upon trying to parse a JSON that contained two string properties of the form "yyyy-mm-dd", I get the following error:

com.google.gson.JsonSyntaxException: java.text.ParseException: Unparseable date: "2017-08-07"

I use ReimbursementRequest rr = gson.fromJson(req.getReader(), ReimbursementRequest.class); to parse them, where gson is a public static instance set to new Gson(). Will I need to define gson another way, and if so, how?

May we see the code for ReimbursementRequest, assuming it can easily fit? — Tim Biegeleisen
– Tim Biegeleisen, Commented Dec 10, 2017 at 10:27
Even though you have already answered your own question, I think you should still include an MCVE in this question so that future readers with a similar problem will benefit. — Joe C
– Joe C, Commented Dec 10, 2017 at 10:34

Joe C · Accepted Answer · 2017-12-10 10:33:15Z

1

Instead of using the vanilla new Gson(), use new GsonBuilder().setDateFormat('yyyy-MM-dd').create(); // and it worked like a charm

edited Dec 10, 2017 at 10:33

Joe C

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answered Dec 10, 2017 at 10:32

Mike Warren

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