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json-iterator / java

jsoniter (json-iterator) is fast and flexible JSON parser available in Java and Go
http://jsoniter.com/
MIT License
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Parsing embedded array field order gets messed up when decoding #260

Open notzippy opened 4 years ago

notzippy commented 4 years ago

For object with an array list of objects with more then one item in the array like {"a":[{"c":"12","d":12},{"c":"12","d":12}]} the following exception occurs. If the array is reduced to 1 length of one value it is successful, if it is mapped as Any[] it works as well. In the following case the nested object had a UUID field and a datetime field, and the order got swapped.

Exception in thread "main" java.lang.IllegalArgumentException: Can not set java.util.Date field Event.datetime to java.util.UUID
    at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:167)
    at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:171)
    at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:58)
    at java.base/jdk.internal.reflect.UnsafeObjectFieldAccessorImpl.get(UnsafeObjectFieldAccessorImpl.java:36)
    at java.base/java.lang.reflect.Field.get(Field.java:418)
    at com.jsoniter.ReflectionObjectDecoder.decodeBinding(ReflectionObjectDecoder.java:382)
    at com.jsoniter.ReflectionObjectDecoder.access$700(ReflectionObjectDecoder.java:10)
    at com.jsoniter.ReflectionObjectDecoder$OnlyField.decode_(ReflectionObjectDecoder.java:153)
    at com.jsoniter.ReflectionObjectDecoder$OnlyField.decode(ReflectionObjectDecoder.java:119)
    at com.jsoniter.ReflectionArrayDecoder.decode(ReflectionArrayDecoder.java:35)
    at com.jsoniter.ReflectionObjectDecoder.decodeBinding(ReflectionObjectDecoder.java:376)
    at com.jsoniter.ReflectionObjectDecoder.decodeBinding(ReflectionObjectDecoder.java:384)
    at com.jsoniter.ReflectionObjectDecoder.access$700(ReflectionObjectDecoder.java:10)
    at com.jsoniter.ReflectionObjectDecoder$OnlyField.decode_(ReflectionObjectDecoder.java:164)
    at com.jsoniter.ReflectionObjectDecoder$OnlyField.decode(ReflectionObjectDecoder.java:119)
    at com.jsoniter.JsonIterator.read(JsonIterator.java:385)
    at com.jsoniter.JsonIterator.read(JsonIterator.java:375)
    at com.jsoniter.JsonIterator.deserialize(JsonIterator.java:441)
    at com.jsoniter.JsonIterator.deserialize(JsonIterator.java:404)
    at happy.main(happy.java:55)