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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. ,
    Expert tip

    Try indicating constructor to use @JsonCreator annotation.

com.fasterxml.jackson.databind.JsonMappingException: No suitable constructor found for type [simple type, class com.github.dexecutor.redisson.MyCallable]: can not instantiate from JSON object (missing default constructor or creator, or perhaps need to add/enable type information?)
 at [Source: io.netty.buffer.ByteBufInputStream@4085f7ff; line: 1, column: 54]	at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:255)	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1130)	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:298)	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:168)	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:135)	at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer._deserializeTypedForId(AsPropertyTypeDeserializer.java:120)	at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer.deserializeTypedFromObject(AsPropertyTypeDeserializer.java:91)	at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer.deserializeTypedFromAny(AsPropertyTypeDeserializer.java:163)	at com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer$Vanilla.deserializeWithType(UntypedObjectDeserializer.java:554)	at com.fasterxml.jackson.databind.deser.impl.TypeWrappedDeserializer.deserialize(TypeWrappedDeserializer.java:63)	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3807)	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2867)	at org.redisson.codec.JsonJacksonCodec$2.decode(JsonJacksonCodec.java:74)	at org.redisson.executor.RemoteExecutorServiceImpl.decode(RemoteExecutorServiceImpl.java:185)	at org.redisson.executor.RemoteExecutorServiceImpl.executeCallable(RemoteExecutorServiceImpl.java:173)	at org.redisson.executor.RemoteExecutorServiceImpl.executeCallable(RemoteExecutorServiceImpl.java:161)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.redisson.RedissonRemoteService.invokeMethod(RedissonRemoteService.java:240)	at org.redisson.RedissonRemoteService.access$300(RedissonRemoteService.java:57)	at org.redisson.RedissonRemoteService$2.run(RedissonRemoteService.java:199)	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)	at java.util.concurrent.FutureTask.run(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)	at java.lang.Thread.run(Unknown Source)