Process definitions until all models are processed

modules/swagger-parser/src/main/java/io/swagger/parser/processors/DefinitionsProcessor.java

@@ -51,5 +51,8 @@ public void processDefinitions() {
 
             }
         }
+        if (!swagger.getDefinitions().keySet().equals(keySet)) {
+            processDefinitions();
+        }
     }
 }

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

@@ -197,6 +197,17 @@ public void testLoadExternalNestedDefinitions() throws Exception {
         assertEquals(((RefModel) definitions.get("i")).get$ref(), "#/definitions/k");
     }
 
+    @Test
+    public void testLoadExternalNestedListRefDefinitions() throws Exception {
+        SwaggerParser parser = new SwaggerParser();
+        final Swagger swagger = parser.read("src/test/resources/nested-list-references/api.yaml");
+        Map<String, Model> definitions = swagger.getDefinitions();
+        assertTrue(!definitions.isEmpty());
+        assertTrue(definitions.containsKey("PetList"));
+        assertTrue(definitions.containsKey("Pet"));
+        assertTrue(definitions.containsKey("Allergy"));
+    }
+
     @Test
     public void testPetstore() throws Exception {
         SwaggerParser parser = new SwaggerParser();

modules/swagger-parser/src/test/resources/nested-list-references/Allergy.yaml

@@ -0,0 +1,6 @@
+title: "Allergy"
+properties:
+  name:
+    type: string
+  severity:
+    type: number

modules/swagger-parser/src/test/resources/nested-list-references/Pet.yaml

@@ -0,0 +1,6 @@
+title: "Pet"
+properties:
+  allergies:
+    type: array
+    items:
+      $ref: "./Allergy.yaml"

modules/swagger-parser/src/test/resources/nested-list-references/PetList.yaml

@@ -0,0 +1,6 @@
+title: "PetList"
+properties:
+  pets:
+    type: array
+    items:
+      $ref: "./Pet.yaml"

modules/swagger-parser/src/test/resources/nested-list-references/api.yaml

@@ -0,0 +1,11 @@
+swagger: "2.0"
+info:
+  title: test data for nested list ext references
+  version: '0.0.0'
+paths:
+  /:
+    get:
+      responses:
+        "200":
+          schema:
+            $ref: "./PetList.yaml"