com.google.gson.JsonSyntaxException: java.lang.NumberFormatException: empty String |

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Samebug tips

,

Your json input might be invalid. Try checking it in a validator like https://jsonlint.com

,

Your custom gson deserializer might have a bug. Try to write a unit test that checks proper deserialization of only that class by forging a json that contains a single field of that type.

Solutions on the web

via GitHub by aerickson
, 9 months ago
java.lang.NumberFormatException: empty String |
via Stack Overflow by Artem Shevchenko
, 2 years ago
via GitHub by thrillfall
, 1 year ago
java.lang.NumberFormatException: Invalid int: ""
via GitHub by thrillfall
, 1 year ago
java.lang.NumberFormatException: Invalid int: ""
via Stack Overflow by prem
, 7 months ago
java.lang.NumberFormatException: Expected an int but was 1035.16 at line 1 column 138 path $.list[0].main.pressure
via GitHub by thrillfall
, 10 months ago
java.lang.NumberFormatException: Invalid double: ""
com.google.gson.JsonSyntaxException: java.lang.NumberFormatException: empty String |
at com.google.gson.internal.bind.TypeAdapters$7.read(TypeAdapters.java:249)
at com.google.gson.internal.bind.TypeAdapters$7.read(TypeAdapters.java:239)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:116)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:216)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
at com.google.gson.internal.bind.ArrayTypeAdapter.read(ArrayTypeAdapter.java:72)
at com.google.gson.Gson.fromJson(Gson.java:879)
at com.google.gson.Gson.fromJson(Gson.java:844)
at com.google.gson.Gson.fromJson(Gson.java:793)
at com.bwssystems.HABridge.hue.HueMulator.changeState(HueMulator.java:750)
at com.bwssystems.HABridge.hue.HueMulator.lambda$21(HueMulator.java:260)
at spark.RouteImpl$1.handle(RouteImpl.java:58)
at spark.webserver.MatcherFilter.doFilter(MatcherFilter.java:162)
at spark.webserver.JettyHandler.doHandle(JettyHandler.java:61)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)
at org.eclipse.jetty.server.Server.handle(Server.java:517)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:302)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:245)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:213)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:147)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at java.lang.Thread.run(Thread.java:745)

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