Fix forward reference in hierarchies

[zeitos]

Fix a Forward reference problem when having inheritance.

if you revert the code in AbstractDeserializer the test fails with:

com.fasterxml.jackson.databind.JsonMappingException: Could not resolve Object Id [willBeForwardReferenced] -- unresolved forward-reference? (through reference chain: com.fasterxml.jackson.databind.deser.ForwardReferenceContainerClass["frc"])
    at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:210)
    at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:177)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.wrapAndThrow(BeanDeserializerBase.java:1436)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:240)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:151)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:126)
    at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer._deserializeTypedForId(AsPropertyTypeDeserializer.java:124)
    at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer.deserializeTypedFromObject(AsPropertyTypeDeserializer.java:95)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeWithType(BeanDeserializerBase.java:956)
    at com.fasterxml.jackson.databind.deser.impl.TypeWrappedDeserializer.deserialize(TypeWrappedDeserializer.java:42)
    at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3259)
    at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2346)
    at com.fasterxml.jackson.databind.deser.TestForwardReference.testForwardRef(TestForwardReference.java:31)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:74)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:211)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:67)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: java.lang.IllegalStateException: Could not resolve Object Id [willBeForwardReferenced] -- unresolved forward-reference?
    at com.fasterxml.jackson.databind.deser.AbstractDeserializer._deserializeFromObjectId(AbstractDeserializer.java:198)
    at com.fasterxml.jackson.databind.deser.AbstractDeserializer.deserializeWithType(AbstractDeserializer.java:122)
    at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:527)
    at com.fasterxml.jackson.databind.deser.impl.ObjectIdReferenceProperty.deserializeSetAndReturn(ObjectIdReferenceProperty.java:70)
    at com.fasterxml.jackson.databind.deser.impl.ObjectIdReferenceProperty.deserializeAndSet(ObjectIdReferenceProperty.java:62)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:238)

[cowtowncoder]

Excellent, thank you for the contribution!

One practical thing we need before merging in the first contribution is to get a filled Contributor License Agreement (CLA). It can be found from here:

https://github.com/FasterXML/jackson/blob/master/contributor-agreement.pdf

and it's just one page; and we only need it filled once and can then merge any number of contributions.
Apologies for the extra process.

Would it be possible to get that filled in, scanned and sent to info at fasterxml.com?

[cowtowncoder]

Once again, thank you for contributing this -- very important fix. Will be in 2.4.4.