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java-json-tools / json-patch

An RFC 6902 (JSON Patch) and reverse, plus RFC 7386 (JSON Merge Patch), implementation in Java using Jackson (2.2.x)
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Unable to deserialize serialized JsonPatch #52

Open Exceptionflug opened 5 years ago

Exceptionflug commented 5 years ago

When trying to deserialize a JsonPatch using JsonPatch.fromJson(node) the following exception occurrs:

com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `java.util.ArrayList` out of VALUE_STRING token
 at [Source: UNKNOWN; line: -1, column: -1]
        at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63)
        at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1342)
        at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1138)
        at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1092)
        at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.handleNonArray(CollectionDeserializer.java:332)
        at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:265)
        at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:245)
        at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:27)
        at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromString(BeanDeserializerBase.java:1365)
        at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:171)
        at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:161)
        at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:1611)
        at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1295)
        at com.github.fge.jsonpatch.JsonPatch.fromJson(JsonPatch.java:129)

The json node was generated by using MAPPER.writeValueAsString(patch)

enuoCM commented 5 years ago

Please try to use mapper.readValue(patch, JsonPatch.class) instead.