com.fasterxml.jackson.databind.JsonMappingException: api.Json cannot be cast to java.lang.String (through reference chain: api.Data["json"])

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Stack Overflow by devshorts
, 1 year ago
api.Json cannot be cast to java.lang.String (through reference chain: api.Data["json"])
via Stack Overflow by Desarrollo Desafio de Guerrero
, 7 months ago
(was java.lang.NullPointerException) (through reference chain: com.desafioguerreros.artifacts.car.entities.Car["volunteer"])
via 4165.org by Unknown author, 1 year ago
(was java.lang.NullPointerException) (through reference chain: com.chanjet.gov.Student["age"])
via bkjia.com by Unknown author, 1 year ago
(was java.lang.NullPointerException) (through reference chain: com.chanjet.gov.Student["age"])
via 07net01.com by Unknown author, 1 year ago
via android100.org by Unknown author, 1 year ago
(was java.lang.NullPointerException) (through reference chain: com.chanjet.gov.Student["age"])
com.fasterxml.jackson.databind.JsonMappingException: api.Json cannot be cast to java.lang.String (through reference chain: api.Data["json"])
at com.fasterxml.jackson.module.scala.ser.OptionSerializer.serialize(OptionSerializerModule.scala:145)
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:672)
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:678)
at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:378)
at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:338)
at com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:342)
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:686)
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:157)
at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:130)
at com.fasterxml.jackson.databind.ObjectWriter$Prefetch.serialize(ObjectWriter.java:1428)
at org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.invokeWriteTo(WriterInterceptorExecutor.java:265)
at org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.aroundWriteTo(WriterInterceptorExecutor.java:250)

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.

Know the solutions? Share your knowledge to help other developers to debug faster.