如何在Android Lollipop中使用注释在Android Jackson Parsing中修复IncompatibleClassChangeError？

Question

在我们的Android应用程序中,我们在模型中使用Jackson Annotations:

@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "templateType", visible = true, defaultImpl = Default.class)
@JsonSubTypes({
@Type(value = Subclass1.class, name = "tType1")

我们使用object mapper解析json响应,其中klass是我们希望解析为的目标文件的类: getObjectMapper().readValue(json, klass);

在Android Lollipop设备的罕见情况下,我们得到

java.lang.IncompatibleClassChangeError: Couldn't find com.fasterxml.jackson.annotation.JsonSubTypes$Type.value.

完整堆栈跟踪:

com.fasterxml.jackson.annotation.JsonSubTypes$Type.value
at libcore.reflect.AnnotationAccess.toAnnotationInstance(AnnotationAccess.java:659)
at java.lang.Class.getDeclaredAnnotations(Class.java:891)
at com.fasterxml.jackson.databind.introspect.AnnotatedClass.resolveClassAnnotations(AnnotatedClass.java:300)
at com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector.isIgnorableType(JacksonAnnotationIntrospector.java:103)
at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.isIgnorableType(BeanDeserializerFactory.java:844)
at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer2(DeserializerCache.java:401)
at com.fasterxml.jackson.databind.DeserializationContext.findContextualValueDeserializer(DeserializationContext.java:305)
at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.createContextual(CollectionDeserializer.java:151)
at com.fasterxml.jackson.databind.deser.std.StdDeserializer.findDeserializer(StdDeserializer.java:634)
at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:438)
at com.fasterxml.jackson.databind.jsontype.impl.TypeDeserializerBase._findDeserializer(TypeDeserializerBase.java:173)
at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer._deserializeTypedForId(AsPropertyTypeDeserializer.java:99)
at com.fasterxml.jackson.databind.deser.AbstractDeserializer.deserializeWithType(AbstractDeserializer.java:106)
at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:464)
at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:98)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:295)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:2888)

Answer 1

这是一些三星设备上的确认错误.不幸的是还没有解决方案,但是这个Android Bug Tracker线程可能很快就会提出修复(如果可能的话):

https://code.google.com/p/android/issues/detail?id=172339