typeMapping not working with maven plugin eweyjose/graphqlcodegen

[rbondar]

Defined in plugin configuration section typeMapping to existent class are not working - application cant start .
Got exception:

***************************
APPLICATION FAILED TO START
***************************

Description:

There are problems with the GraphQL Schema:
	 * The field type 'GalleriesResponse' is not present when resolving type 'Query' [@1:1]
	 * The field input type 'GalleriesRequest' is not present when resolving type 'Query' [@1:1]

Current schema:

type Query {
   galleries(galleriesRequest: GalleriesRequest): GalleriesResponse
}

Plugin config:

<plugin>
                <groupId>io.github.deweyjose</groupId>
                <artifactId>graphqlcodegen-maven-plugin</artifactId>
                <version>1.16</version>
                <configuration>
                    <schemaPaths>
                        <path>src/main/resources/schema/schema.graphqls</path>
                    </schemaPaths>
                    <packageName>ru.service.graphql.generated</packageName>
                    <typeMapping>
                        <GalleriesRequest>ru.commons.model.common.gallery.GalleriesRequest</GalleriesRequest>
                        <GalleriesResponse>ru.commons.model.common.gallery.GalleriesResponse</GalleriesResponse>
                    </typeMapping>
                    <generateBoxedTypes>true</generateBoxedTypes>
                    <writeToFiles>true</writeToFiles>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

Got file after mvn clean package
ru/service/graphql/generated/DgsConstants.java

File body:

import java.lang.String;

public class DgsConstants {
  public static final String QUERY_TYPE = "Query";

  public static class QUERY {
    public static final String TYPE_NAME = "Query";

    public static final String Galleries = "galleries";
  }
}

Class and method annotations (IDE imported everyhting correctly and autocompletion works):

@Service
@Slf4j
@DgsComponent
public class GalleryService {
...
    @DgsData(parentType = DgsConstants.QUERY_TYPE, field = DgsConstants.QUERY.Galleries)
    public GalleriesResponse galleries(@InputArgument GalleriesRequest galleriesRequest) throws IOException {
...

What could be the issue?

Kindly appreciate your help.

[srinivasankavitha]

We don't actively maintain the maven plugin. This was a contribution by one of our collaborators. Please use the gradle plugin, if possible to get full feature support.