fixes #94

Author: springdoc

springdoc-openapi-common/src/main/java/org/springdoc/core/ObjectNodeConverter.java

@@ -0,0 +1,32 @@
+package org.springdoc.core;
+
+import java.util.Iterator;
+
+import com.fasterxml.jackson.databind.JavaType;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+import io.swagger.v3.core.converter.AnnotatedType;
+import io.swagger.v3.core.converter.ModelConverter;
+import io.swagger.v3.core.converter.ModelConverterContext;
+import io.swagger.v3.core.util.Json;
+import io.swagger.v3.oas.models.media.ObjectSchema;
+import io.swagger.v3.oas.models.media.Schema;
+
+public class ObjectNodeConverter implements ModelConverter {
+
+	@Override
+	public Schema resolve(AnnotatedType type, ModelConverterContext context, Iterator<ModelConverter> chain) {
+		JavaType _type = Json.mapper().constructType(type.getType());
+		if (_type != null) {
+			Class<?> cls = _type.getRawClass();
+			if (ObjectNode.class.isAssignableFrom(cls)) {
+				return new ObjectSchema();
+			}
+		}
+		if (chain.hasNext()) {
+			return chain.next().resolve(type, context, chain);
+		} else {
+			return null;
+		}
+	}
+}

springdoc-openapi-common/src/main/java/org/springdoc/core/SpringDocAnnotationsUtils.java

@@ -29,6 +29,10 @@ private SpringDocAnnotationsUtils() {
 
 	static final String COMPONENTS_REF = "#/components/schemas/";
 
+	static {
+		ModelConverters.getInstance().addConverter(new ObjectNodeConverter());
+	}
+
 	public static Schema resolveSchemaFromType(Class<?> schemaImplementation, Components components) {
 		Schema schemaObject = null;
 		PrimitiveType primitiveType = PrimitiveType.fromType(schemaImplementation);

springdoc-openapi-core/src/test/java/test/org/springdoc/api/app39/SpringDocTestApp.java

@@ -1,15 +1,15 @@
 package test.org.springdoc.api.app39;
 
-import io.swagger.v3.oas.models.Components;
-import io.swagger.v3.oas.models.OpenAPI;
-import io.swagger.v3.oas.models.media.Schema;
-import io.swagger.v3.oas.models.media.StringSchema;
-import io.swagger.v3.oas.models.parameters.HeaderParameter;
 import org.springdoc.api.OpenApiCustomiser;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.Bean;
 
+import io.swagger.v3.oas.models.Components;
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.media.StringSchema;
+import io.swagger.v3.oas.models.parameters.HeaderParameter;
+
 @SpringBootApplication
 public class SpringDocTestApp {
 

springdoc-openapi-core/src/test/java/test/org/springdoc/api/app40/HelloController.java

@@ -0,0 +1,16 @@
+package test.org.springdoc.api.app40;
+
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+@RestController("/api")
+public class HelloController {
+
+	@RequestMapping(value = "/iae_error", method = RequestMethod.GET)
+	public ObjectNode getStartFormProperties() {
+		return null;
+	}
+}

springdoc-openapi-core/src/test/java/test/org/springdoc/api/app40/SpringDocApp40Test.java

@@ -0,0 +1,8 @@
+package test.org.springdoc.api.app40;
+
+import test.org.springdoc.api.AbstractSpringDocTest;
+
+public class SpringDocApp40Test extends AbstractSpringDocTest {
+
+
+}

springdoc-openapi-core/src/test/java/test/org/springdoc/api/app40/SpringDocTestApp.java

@@ -0,0 +1,12 @@
+package test.org.springdoc.api.app40;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringDocTestApp {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SpringDocTestApp.class, args);
+	}
+}

springdoc-openapi-core/src/test/resources/results/app40.json

@@ -0,0 +1,35 @@
+{
+   "openapi":"3.0.1",
+   "info":{
+      "title":"OpenAPI definition",
+      "version":"v0"
+   },
+   "servers":[
+      {
+         "url":"http://localhost",
+         "description":"Generated server url"
+      }
+   ],
+   "paths":{
+      "/iae_error":{
+         "get":{
+            "operationId":"getStartFormProperties",
+            "responses":{
+               "200":{
+                  "description":"default response",
+                  "content":{
+                     "*/*":{
+                        "schema":{
+                           "type":"object"
+                        }
+                     }
+                  }
+               }
+            }
+         }
+      }
+   },
+   "components":{
+
+   }
+}