solution for issue #913 in OAS3

Author: gracekarina

modules/swagger-parser-v3/src/main/java/io/swagger/v3/parser/processors/ExternalRefProcessor.java

@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.models.media.ArraySchema;
 import io.swagger.v3.oas.models.media.ComposedSchema;
 import io.swagger.v3.oas.models.media.MediaType;
+import io.swagger.v3.oas.models.media.ObjectSchema;
 import io.swagger.v3.oas.models.media.Schema;
 import io.swagger.v3.oas.models.parameters.Parameter;
 import io.swagger.v3.oas.models.parameters.RequestBody;
@@ -199,6 +200,11 @@ private void processProperties(Map<String,Schema> subProps, String file) {
                             && StringUtils.isNotBlank(((ArraySchema) mapProp.getAdditionalProperties()).getItems().get$ref())) {
                         processRefSchema(((ArraySchema) mapProp.getAdditionalProperties()).getItems(), file);
                     }
+                }else if (prop.getValue() instanceof ObjectSchema){
+                    ObjectSchema objProp = (ObjectSchema) prop.getValue();
+                    if(objProp.getProperties() != null ){
+                        processProperties(objProp.getProperties(),file);
+                    }
                 }
             }
         }

modules/swagger-parser-v3/src/test/java/io/swagger/v3/parser/test/OpenAPIV3ParserTest.java

@@ -63,9 +63,8 @@ public void testIssue913() {
         ParseOptions options = new ParseOptions();
         options.setResolve(true);
         final OpenAPI openAPI = parser.readLocation("issue-913/BS/ApiSpecification.yaml", null, options).getOpenAPI();
-        Yaml.prettyPrint(openAPI);
         Assert.assertNotNull(openAPI);
-        Assert.assertNotNull(openAPI.getComponents().getSchemas().get("indicatorType"));            
+        Assert.assertNotNull(openAPI.getComponents().getSchemas().get("indicatorType"));
         Assert.assertEquals(openAPI.getComponents().getSchemas().get("indicatorType").getProperties().size(),1);
     }