Weird behaviour when custom scalar field argument is non-nullable #346

myQuery(version: SemVer!): Output

GraphQLScalarType.newScalar()
            .name("SemVer")
            .description("Semantic version type")
            .coercing(new Coercing<Version, String>() {
                ...
            }).build();

Cannot construct instance of `de.skuzzle.semantic.Version` (no Creators, like default construct, exist): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: UNKNOWN; line: -1, column: -1]

java.lang.IllegalArgumentException: Cannot construct instance of `de.skuzzle.semantic.Version` (no Creators, like default construct, exist): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: UNKNOWN; line: -1, column: -1]
        at com.fasterxml.jackson.databind.ObjectMapper._convert(ObjectMapper.java:3922) ~[jackson-databind-2.10.0.jar!/:2.10.0]
        at com.fasterxml.jackson.databind.ObjectMapper.convertValue(ObjectMapper.java:3863) ~[jackson-databind-2.10.0.jar!/:2.10.0]
        at com.coxautodev.graphql.tools.MethodFieldResolver$createDataFetcher$$inlined$forEachIndexed$lambda$1.invoke(MethodFieldResolver.kt:103) ~[graphql-java-tools-5.7.1.jar!/:na]
        at com.coxautodev.graphql.tools.MethodFieldResolver$createDataFetcher$$inlined$forEachIndexed$lambda$1.invoke(MethodFieldResolver.kt:28) ~[graphql-java-tools-5.7.1.jar!/:na]
        at com.coxautodev.graphql.tools.MethodFieldResolverDataFetcher.get(MethodFieldResolver.kt:194) ~[graphql-java-tools-5.7.1.jar!/:na]
        at graphql.execution.instrumentation.dataloader.DataLoaderDispatcherInstrumentation.lambda$instrumentDataFetcher$0(DataLoaderDispatcherInstrumentation.java:86) ~[graphql-java-13.0.jar!/:na]
        at graphql.execution.ExecutionStrategy.fetchField(ExecutionStrategy.java:270) [graphql-java-13.0.jar!/:na]
        at graphql.execution.ExecutionStrategy.resolveFieldWithInfo(ExecutionStrategy.java:198) [graphql-java-13.0.jar!/:na]
        at graphql.execution.AsyncExecutionStrategy.execute(AsyncExecutionStrategy.java:74) ~[graphql-java-13.0.jar!/:na]
        at graphql.execution.Execution.executeOperation(Execution.java:161) ~[graphql-java-13.0.jar!/:na]
        at graphql.execution.Execution.execute(Execution.java:102) ~[graphql-java-13.0.jar!/:na]
        at graphql.GraphQL.execute(GraphQL.java:605) ~[graphql-java-13.0.jar!/:na]
        at graphql.GraphQL.parseValidateAndExecute(GraphQL.java:538) ~[graphql-java-13.0.jar!/:na]
        at graphql.GraphQL.executeAsync(GraphQL.java:502) ~[graphql-java-13.0.jar!/:na]
        at graphql.kickstart.execution.GraphQLInvoker.executeAsync(GraphQLInvoker.java:26) ~[graphql-java-kickstart-9.0.0.jar!/:na]
        at graphql.kickstart.execution.GraphQLInvoker.query(GraphQLInvoker.java:38) ~[graphql-java-kickstart-9.0.0.jar!/:na]
        at graphql.kickstart.execution.GraphQLInvoker.query(GraphQLInvoker.java:31) ~[graphql-java-kickstart-9.0.0.jar!/:na]
        at graphql.servlet.HttpRequestHandlerImpl.invoke(HttpRequestHandlerImpl.java:68) ~[graphql-java-servlet-9.0.0.jar!/:na]
        at graphql.servlet.HttpRequestHandlerImpl.execute(HttpRequestHandlerImpl.java:54) ~[graphql-java-servlet-9.0.0.jar!/:na]
        at graphql.servlet.HttpRequestHandlerImpl.handle(HttpRequestHandlerImpl.java:39) ~[graphql-java-servlet-9.0.0.jar!/:na]
        at graphql.servlet.AbstractGraphQLHttpServlet.doRequest(AbstractGraphQLHttpServlet.java:147) ~[graphql-java-servlet-9.0.0.jar!/:na]
        at graphql.servlet.AbstractGraphQLHttpServlet.doRequestAsync(AbstractGraphQLHttpServlet.java:137) ~[graphql-java-servlet-9.0.0.jar!/:na]
        at graphql.servlet.AbstractGraphQLHttpServlet.doPost(AbstractGraphQLHttpServlet.java:169) ~[graphql-java-servlet-9.0.0.jar!/:na]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:92) ~[spring-web-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108) ~[spring-boot-actuator-2.2.1.RELEASE.jar!/:2.2.1.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar!/:5.2.1.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1579) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_211]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_211]
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.27.jar!/:9.0.27]
        at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_211]
Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `de.skuzzle.semantic.Version` (no Creators, like default construct, exist): cannot deserialize from Object value (no delegate- or property-based Creator)
 at [Source: UNKNOWN; line: -1, column: -1]
        at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:67) ~[jackson-databind-2.10.0.jar!/:2.10.0]
        at com.fasterxml.jackson.databind.DeserializationContext.reportBadDefinition(DeserializationContext.java:1589) ~[jackson-databind-2.10.0.jar!/:2.10.0]
        at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1055) ~[jackson-databind-2.10.0.jar!/:2.10.0]
        at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1297) ~[jackson-databind-2.10.0.jar!/:2.10.0]
        at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:326) ~[jackson-databind-2.10.0.jar!/:2.10.0]
        at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:159) ~[jackson-databind-2.10.0.jar!/:2.10.0]
        at com.fasterxml.jackson.databind.ObjectMapper._convert(ObjectMapper.java:3917) ~[jackson-databind-2.10.0.jar!/:2.10.0]
        ... 65 common frames omitted