Jackson Ignore Extra Wrapped Root

IgnoreExtraWrappedRootJsonParser.java

import java.io.IOException;

public class IgnoreExtraWrappedRootJsonParser extends JsonParserDelegate {

    private final String rootName;

    public IgnoreExtraWrappedRootJsonParser(JsonParser delegate, JavaType rootType) {
        super(delegate);
        JsonRootName jsonRootName = rootType.getRawClass().getAnnotation(JsonRootName.class);
        rootName = jsonRootName == null ? null : "/" + jsonRootName.value();
    }

    @Override
    @SuppressFBWarnings(value = "ITU_INAPPROPRIATE_TOSTRING_USE", justification = "no other way to find current path")
    public JsonToken nextToken() throws IOException {
        JsonToken nextToken = super.nextToken();
        String currentPath = getParsingContext().pathAsPointer().toString();
        if (rootName == null || currentPath.startsWith(rootName) || currentPath.isEmpty()) return nextToken;
        // skip this token and try the next one
        return nextToken();
    }
}

IgnoreExtraWrappedRootObjectMapper.java

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.*;

import java.io.IOException;

public class IgnoreExtraWrappedRootObjectMapper extends ObjectMapper {

    private static final long serialVersionUID = 1L;

    @Override
    protected Object _unwrapAndDeserialize(JsonParser p,
                                           DeserializationContext ctxt,
                                           DeserializationConfig config,
                                           JavaType rootType,
                                           JsonDeserializer<Object> deser) throws IOException {
        IgnoreExtraWrappedRootJsonParser ignoreExtraWrappedRootJsonParser =
                new IgnoreExtraWrappedRootJsonParser(p, rootType);
        return super._unwrapAndDeserialize(ignoreExtraWrappedRootJsonParser, ctxt, config, rootType, deser);
    }
}