Fix for issue 1608

modules/swagger-parser-v2-converter/src/main/java/io/swagger/v3/parser/converter/SwaggerConverter.java

@@ -59,6 +59,7 @@
 import io.swagger.v3.parser.core.models.AuthorizationValue;
 import io.swagger.v3.parser.core.models.ParseOptions;
 import io.swagger.v3.parser.core.models.SwaggerParseResult;
+import io.swagger.v3.parser.util.ResolverFully;
 import io.swagger.v3.parser.util.SchemaTypeUtil;
 import org.apache.commons.lang3.StringUtils;
 
@@ -108,19 +109,25 @@ public SwaggerParseResult readContents(String swaggerAsString, List<Authorizatio
 
     private SwaggerParseResult readResult(SwaggerDeserializationResult result, List<AuthorizationValue> auth, ParseOptions options) {
         SwaggerParseResult out = convert(result);
-        if (out != null && options != null && options.isFlatten()) {
-            try {
-                SwaggerParseResult resultV3 = new OpenAPIV3Parser().readContents(Yaml.pretty(out.getOpenAPI()), auth, options);
-                out.setOpenAPI(resultV3.getOpenAPI());
-                if (out.getMessages() != null) {
-                    out.getMessages().addAll(resultV3.getMessages());
-                    out.messages(out.getMessages().stream()
-                            .distinct()
-                            .collect(Collectors.toList()));
-                } else {
-                    out.messages(resultV3.getMessages());
+        if (out != null && options != null) {
+            if (options.isResolveFully()) {
+                new ResolverFully(options.isResolveCombinators()).resolveFully(out.getOpenAPI());
+            }
+            if (options.isFlatten()) {
+                try {
+                    SwaggerParseResult resultV3 = new OpenAPIV3Parser().readContents(Yaml.pretty(out.getOpenAPI()), auth, options);
+                    out.setOpenAPI(resultV3.getOpenAPI());
+                    if (out.getMessages() != null) {
+                        out.getMessages().addAll(resultV3.getMessages());
+                        out.messages(out.getMessages().stream()
+                                .distinct()
+                                .collect(Collectors.toList()));
+                    } else {
+                        out.messages(resultV3.getMessages());
+                    }
+                } catch (Exception ignore) {
                 }
-            } catch (Exception ignore) {}
+            }
         }
         return out;
     }

modules/swagger-parser/src/test/java/io/swagger/parser/OpenAPIParserTest.java

@@ -30,6 +30,16 @@
 
 public class OpenAPIParserTest {
 
+    @Test
+    public void testIssue1608(){
+        ParseOptions options = new ParseOptions();
+        options.setResolveFully(true);
+        OpenAPIParser openAPIParser = new OpenAPIParser();
+        SwaggerParseResult swaggerParseResult = openAPIParser.readLocation("issue1608.json", null, options);
+        Schema schema = swaggerParseResult.getOpenAPI().getPaths().get("/pet").getPut().getRequestBody().getContent().get("application/json").getSchema();
+        assertEquals(schema.getRequired().size(), 1);
+    }
+
     @Test
     public void testIssue1143(){
         ParseOptions options = new ParseOptions();

modules/swagger-parser/src/test/resources/issue1608.json

@@ -0,0 +1,76 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "description": "This is a sample server Petstore server.  You can find out more about Swagger at [http://swagger.io](http://swagger.io) or on [irc.freenode.net, #swagger](http://swagger.io/irc/).  For this sample, you can use the api key `special-key` to test the authorization filters.",
+    "version": "1.0.5",
+    "title": "Swagger Petstore",
+    "termsOfService": "http://swagger.io/terms/",
+    "contact": {
+      "email": "apiteam@swagger.io"
+    },
+    "license": {
+      "name": "Apache 2.0",
+      "url": "http://www.apache.org/licenses/LICENSE-2.0.html"
+    }
+  },
+  "host": "petstore.swagger.io",
+  "basePath": "/v2",
+  "schemes": [
+    "https",
+    "http"
+  ],
+  "paths": {
+    "/pet": {
+      "put": {
+        "summary": "Update an existing pet",
+        "description": "",
+        "operationId": "updatePet",
+        "consumes": [
+          "application/json",
+          "application/xml"
+        ],
+        "produces": [
+          "application/json",
+          "application/xml"
+        ],
+        "parameters": [
+          {
+            "in": "body",
+            "name": "body",
+            "description": "Pet object that needs to be added to the store",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/Pet"
+            }
+          }
+        ],
+        "responses": {
+          "400": {
+            "description": "Invalid ID supplied"
+          }
+        }
+      }
+    }
+  },
+  "definitions": {
+    "Pet": {
+      "type": "object",
+      "required": [
+        "name"
+      ],
+      "properties": {
+        "name": {
+          "type": "string",
+          "example": "doggie"
+        }
+      },
+      "xml": {
+        "name": "Pet"
+      }
+    }
+  },
+  "externalDocs": {
+    "description": "Find out more about Swagger",
+    "url": "http://swagger.io"
+  }
+}