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  1. ,
    Expert tip

    Try indicating constructor to use @JsonCreator annotation.

  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.

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via GitHub by tbarbugli
, 2 years ago
Error parsing json: /var/lib/jmxtrans/cassandra.json
via GitHub by veerareddyganta
, 1 year ago
Error parsing json: /home/vganta/jmx_influx.json
via GitHub by qiulin168
, 1 year ago
Error parsing json: /var/lib/jmxtrans/c.json
com.fasterxml.jackson.databind.JsonMappingException: Instantiation of [simple type, class com.googlecode.jmxtrans.model.output.CloudWatchWriter] value failed (java.lang.NullPointerException): null
 at [Source: N/A; line: -1, column: -1] (through reference chain: com.googlecode.jmxtrans.model.JmxProcess["servers"]->java.util.ArrayList[0]->com.googlecode.jmxtrans.model.Server["queries"]->java.util.ArrayList[0]->com.googlecode.jmxtrans.model.Query["outputWriters"]->java.util.ArrayList[0])	at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:262)	at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.wrapAsJsonMappingException(StdValueInstantiator.java:445)	at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.rewrapCtorProblem(StdValueInstantiator.java:464)	at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromObjectWith(StdValueInstantiator.java:258)	at com.fasterxml.jackson.databind.deser.impl.PropertyBasedCreator.build(PropertyBasedCreator.java:135)	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:444)	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1123)	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.deser.AbstractDeserializer.deserializeWithType(AbstractDeserializer.java:142)	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:279)	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:249)	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:26)	at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:490)