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Samebug tips

  1. ,

    The easiest solution is to provide a default constructor for the class you want to convert from/to json.

  2. ,

    You are trying to deserialize a type for which Jackson does not provide a default mapper. You should create your custom mapper for this type.

Solutions on the web

via Stack Overflow by daydreamer
, 1 year ago
Unexpected token (END_OBJECT), expected FIELD_NAME: missing property '@type' that is to contain type id (for class com.datasources.DataSource) at [Source: /var/folders/g3/wtbqfj7d5fsbkz1gm74kqy380000gn/T/junit5577276768876379004/fileDataSource.json; line: 1, column: 123]
via GitHub by quilicicf
, 1 year ago
Unexpected token (END_OBJECT), expected FIELD_NAME: missing property 'type' that is to contain type id (for class com.fasterxml.jackson.module.jsonSchema.JsonSchema) at [Source: {}; line: 1, column: 2]
via GitHub by rpatrick00
, 2 years ago
Unexpected token (FIELD_NAME), expected START_OBJECT: need JSON Object to contain As.WRAPPER_OBJECT type information for class test.Computer at [Source: company-jackson.xml; line: 4, column: 9] (through reference chain: test.Company["computers"]->java.util.ArrayList[0])
via Tridion by Gulshan Thakur
, 1 year ago
Unexpected token (END_OBJECT), expected FIELD_NAME: missing property 'FieldType' that is to contain type id (for class org.dd4t.contentmodel.impl.BaseField) at [Source: {"Folder":{"PublicationId":"tcm:0-301-1","Id":"tcm:301-3014-2","Title
via GitHub by ecdavis
, 1 year ago
Can not deserialize instance of java.lang.String out of START_ARRAY token at [Source: [B@460ebd80; line: 1, column: 17] (through reference chain: com.amazonaws.services.lambda.invoke.LambdaFunctionError["stackTrace"]->java.util.ArrayList[0])
com.fasterxml.jackson.databind.JsonMappingException: Unexpected token (END_OBJECT), expected FIELD_NAME: missing property '@type' that is to contain type id (for class com.datasources.DataSource) at [Source: /var/folders/g3/wtbqfj7d5fsbkz1gm74kqy380000gn/T/junit5577276768876379004/fileDataSource.json; line: 1, column: 123] at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:261) at com.fasterxml.jackson.databind.DeserializationContext.wrongTokenException(DeserializationContext.java:1340) at com.fasterxml.jackson.databind.DeserializationContext.reportWrongTokenException(DeserializationContext.java:1196) at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer._deserializeTypedUsingDefaultImpl(AsPropertyTypeDeserializer.java:157) at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer.deserializeTypedFromObject(AsPropertyTypeDeserializer.java:105) at com.fasterxml.jackson.databind.deser.AbstractDeserializer.deserializeWithType(AbstractDeserializer.java:142) at com.fasterxml.jackson.databind.deser.impl.TypeWrappedDeserializer.deserialize(TypeWrappedDeserializer.java:42) at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3789) at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2731) at com.workflow.WorkflowConfigTest.testSerializeAndSerializeFileDataSourceFromFile(WorkflowConfigTest.java:55) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48) at org.junit.rules.RunRules.evaluate(RunRules.java:20) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)