@JsonCreator not working on a factory with no arguments for ae enum type

[ajonkisz]

Using a singleton pattern as described here by Joshua Block results in IllegalArgumentException from BasicDeserializerFactory:1252. An example:

public enum  MyEnum {
    INSTANCE;

    @JsonCreator
    public static MyEnum getInstance() {
        return INSTANCE;
    }   
}

A dirty workaround is to add an ignored parameter like:

@JsonCreator
public static MyEnum getInstance(String ignored) {
    return INSTANCE;
}

This issue is related to issue 929

[cowtowncoder]

Yes, I think it is essentially a variation of #929. Thank you for reporting this.