Hi,
I have an abstract class with generics, and annotated with @JsonTypeInfo
and @JsonSubTypes, like so:
@JsonTypeInfo(
use = JsonTypeInfo.Id.NAME,
include = JsonTypeInfo.As.PROPERTY,
property = "someProperty"
)
@JsonSubTypes(
{@JsonSubTypes.Type(value = Class1.class, name = "class1"),
@JsonSubTypes.Type(value = Class2.class, name = "class2"})
public abstract class MyClass<T extends Other> {
...
}
All of the subclasses have the generic type statically declared.
Deserializing almost always works, but very sporadically I get the
following error:
Can not construct instance of MyClass , problem: abstract types either need
to be mapped to concrete types, have custom deserializer, or be
instantiated with additional type information.
I haven't been able to replicate this in a controlled test, but it has
popped up in production. Is it possibly due to multi-threading?
I'm using jackson-annotations 2.5.1 and jackson-databind 2.5.1
Any help is appreciated,
Alex
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