Fix OpenAPITools#5381

fixed name of model from UNKNOWN_BASE_TYPE to right one in api: operationId + OneOf

Fix OpenAPITools#5381
parcelableModel is not required

Author: alexsuperdev

modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java

@@ -5425,6 +5425,9 @@ public CodegenParameter fromRequestBody(RequestBody body, Set<String> imports, S
                             LOGGER.warn("codegenModel is null. Default to UNKNOWN_BASE_TYPE");
                             codegenModelName = "UNKNOWN_BASE_TYPE";
                             codegenModelDescription = "UNKNOWN_DESCRIPTION";
+                            if (useOneOfInterfaces && templateDir.equals("JavaSpring")){
+                                codegenModelName = codegenProperty.getComplexType()+"OneOf";
+                            }
                         }
 
                         if (StringUtils.isEmpty(bodyParameterName)) {
@@ -5439,7 +5442,7 @@ public CodegenParameter fromRequestBody(RequestBody body, Set<String> imports, S
                         codegenParameter.description = codegenModelDescription;
                         imports.add(codegenParameter.baseType);
 
-                        if (codegenProperty.complexType != null) {
+                        if (codegenProperty.complexType != null && (useOneOfInterfaces && !templateDir.equals("JavaSpring"))) {
                             imports.add(codegenProperty.complexType);
                         }
                     }

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/SpringCodegen.java

@@ -21,10 +21,6 @@
 import io.swagger.v3.oas.models.OpenAPI;
 import io.swagger.v3.oas.models.Operation;
 import io.swagger.v3.oas.models.PathItem;
-import io.swagger.v3.oas.models.media.ComposedSchema;
-import io.swagger.v3.oas.models.media.Schema;
-import io.swagger.v3.oas.models.parameters.RequestBody;
-import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.tuple.Pair;
 import org.openapitools.codegen.*;
 import org.openapitools.codegen.languages.features.BeanValidationFeatures;
@@ -33,8 +29,6 @@
 import org.openapitools.codegen.meta.features.*;
 import org.openapitools.codegen.templating.mustache.SplitStringLambda;
 import org.openapitools.codegen.templating.mustache.TrimWhitespaceLambda;
-import org.openapitools.codegen.utils.ModelUtils;
-import org.openapitools.codegen.utils.OneOfImplementorAdditionalData;
 import org.openapitools.codegen.utils.URLPathUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

modules/openapi-generator/src/main/resources/JavaSpring/model.mustache

@@ -35,7 +35,7 @@ import org.springframework.hateoas.RepresentationModel;
 {{>enumOuterClass}}
 {{/isEnum}}
 {{^isEnum}}
-  {{#vendorExtensions.x-is-one-of-interface}}{{>oneof_interface}}{{/vendorExtensions.x-is-one-of-interface}}{{^vendorExtensions.x-is-one-of-interface}}{{>pojo}}{{/vendorExtensions.x-is-one-of-interface}}
+{{#vendorExtensions.x-is-one-of-interface}}{{>oneof_interface}}{{/vendorExtensions.x-is-one-of-interface}}{{^vendorExtensions.x-is-one-of-interface}}{{>pojo}}{{/vendorExtensions.x-is-one-of-interface}}
 {{/isEnum}}
 {{/model}}
 {{/models}}

modules/openapi-generator/src/main/resources/JavaSpring/oneof_interface.mustache

@@ -3,4 +3,4 @@ public interface {{classname}} {{#vendorExtensions.x-implements}}{{#-first}}exte
     {{#discriminator}}
     public {{propertyType}} {{propertyGetter}}();
     {{/discriminator}}
-}
+}