Fix NullPointerException when resolving an ApiResponse with no content

tjaneczko · tjaneczko · commit a989c2aa9c7f · 2018-10-01T17:15:10.000-04:00
diff --git a/modules/swagger-parser-v3/src/main/java/io/swagger/v3/parser/ResolverCache.java b/modules/swagger-parser-v3/src/main/java/io/swagger/v3/parser/ResolverCache.java
@@ -159,8 +159,10 @@ else if(rootPath != null) {
     protected <T> void updateLocalRefs(String file, T result) {
         if(result instanceof ApiResponse) {
             ApiResponse response = (ApiResponse) result;
-            for(String mediaType : response.getContent().keySet()) {
-                updateLocalRefs(file, response.getContent().get(mediaType).getSchema());
+            if (response.getContent() != null) {
+                for (String mediaType : response.getContent().keySet()) {
+                    updateLocalRefs(file, response.getContent().get(mediaType).getSchema());
+                }
             }
         }
         if(result instanceof Schema && ((Schema)(result)).get$ref() != null) {

Original file line number	Diff line number	Diff line change
`@@ -159,8 +159,10 @@ else if(rootPath != null) {`
`159`	`159`	`protected <T> void updateLocalRefs(String file, T result) {`
`160`	`160`	`if(result instanceof ApiResponse) {`
`161`	`161`	`ApiResponse response = (ApiResponse) result;`
`162`		`- for(String mediaType : response.getContent().keySet()) {`
`163`		`- updateLocalRefs(file, response.getContent().get(mediaType).getSchema());`
	`162`	`+ if (response.getContent() != null) {`
	`163`	`+ for (String mediaType : response.getContent().keySet()) {`
	`164`	`+ updateLocalRefs(file, response.getContent().get(mediaType).getSchema());`
	`165`	`+ }`
`164`	`166`	`}`
`165`	`167`	`}`
`166`	`168`	`if(result instanceof Schema && ((Schema)(result)).get$ref() != null) {`