fix for issue-1865 - dereferencing files with dots

modules/swagger-parser-v3/src/main/java/io/swagger/v3/parser/util/RefUtils.java

@@ -14,6 +14,7 @@
 import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Optional;
 
@@ -47,10 +48,13 @@ public static String computeDefinitionName(String ref) {
             plausibleName = filePathElements[filePathElements.length - 1];
 
             final String[] split = plausibleName.split("\\.");
-            // Fix for issue-1621
-            plausibleName = split[0];
-            for (int i = 1; i < split.length - 1; i++) {
-                plausibleName += "." + split[i];
+            // Fix for issue-1621 and issue-1865
+            //validate number of dots
+            if(split.length > 2) {
+                //Remove dot so ref can be interpreted as internal and relative in Swagger-Core schema class 'set$ref'
+                plausibleName = String.join("", Arrays.copyOf(split, split.length - 1));
+            }else{
+                plausibleName = split[0];
             }
         }
 
@@ -225,4 +229,4 @@ private static String readAll(Path path) throws IOException {
             return IOUtils.toString(inputStream, UTF_8);
         }
     }
-}
+}

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

@@ -86,6 +86,36 @@ public class OpenAPIV3ParserTest {
     protected int serverPort = getDynamicPort();
     protected WireMockServer wireMockServer;
 
+    @Test
+    public void testIssue1621() {
+        final ParseOptions parseOptions = new ParseOptions();
+        parseOptions.setResolve(true);
+        parseOptions.setResolveFully(true);
+        parseOptions.setResolveCombinators(false);
+        SwaggerParseResult parseResult = new OpenAPIV3Parser().readLocation("issue-1621/example.openapi.yaml", null, parseOptions);
+        assertEquals(0, parseResult.getMessages().size());
+        OpenAPI api = parseResult.getOpenAPI();
+        assertEquals( api.getPaths()
+                .get("/example")
+                .getPost()
+                .getRequestBody()
+                .getContent()
+                .get("application/json")
+                .getSchema()
+                .getTitle(),"POST Example");
+    }
+
+    @Test
+    public void testIssue1865() throws Exception {
+        ParseOptions options = new ParseOptions();
+        options.setResolve(true);
+        SwaggerParseResult result = new OpenAPIV3Parser().readLocation("src/test/resources/issue-1865/openapi30.yaml", null, options);
+
+        Assert.assertNotNull(result);
+        Assert.assertNotNull(result.getOpenAPI());
+        Assert.assertEquals(result.getOpenAPI().getComponents().getSchemas().get("Foo").get$ref(), "#/components/schemas/foomodel");
+    }
+
     @Test
     public void testIssue1777() {
         OpenAPIV3Parser openApiParser = new OpenAPIV3Parser();

modules/swagger-parser-v3/src/test/resources/issue-1865/apis/foo.yaml

@@ -0,0 +1,24 @@
+#broken-ref/apis/foo.yaml
+openapi: 3.0.0
+info:
+  title: swagger parser bug, worked until 2.0.28 but not since 2.0.29
+  version: '1.0'
+
+paths:
+
+  '/foo':
+    post:
+      summary: create foo
+      description: Create a new foo.
+      responses:
+        '200':
+          description: a Foo
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Foo'
+
+components:
+  schemas:
+    Foo:
+      $ref: ../models/foo.model.yaml

modules/swagger-parser-v3/src/test/resources/issue-1865/examples/foo.example.yaml

@@ -0,0 +1,3 @@
+# broken-ref/examples/foo.example.yaml
+value:
+  foo: bar

modules/swagger-parser-v3/src/test/resources/issue-1865/models/foo.model.yaml

@@ -0,0 +1,6 @@
+#broken-ref/models/foo.model.yaml
+title: Foo
+type: object
+properties:
+  foo:
+    type: string

modules/swagger-parser-v3/src/test/resources/issue-1865/openapi30.yaml

@@ -0,0 +1,9 @@
+# broken-ref/openapi30.yaml
+openapi: 3.0.3
+info:
+  title: ref chain
+  version: '1'
+
+paths:
+  /foo:
+    $ref: ./apis/foo.yaml#/paths/~1foo

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

@@ -65,26 +65,6 @@ public void testIssue1143(){
         assertNotNull(result.getOpenAPI().getComponents().getSchemas().get("identificacion_usuario_aplicacion"));
     }
 
-    @Test
-    public void testIssue1621() {
-        final ParseOptions parseOptions = new ParseOptions();
-        parseOptions.setResolve(true);
-        parseOptions.setResolveFully(true);
-        parseOptions.setResolveCombinators(false);
-        OpenAPIParser openAPIParser = new OpenAPIParser();
-        SwaggerParseResult swaggerParseResult = openAPIParser.readLocation("issue-1621/example.openapi.yaml", null, parseOptions);
-        assertEquals(0, swaggerParseResult.getMessages().size());
-        OpenAPI api = swaggerParseResult.getOpenAPI();
-        assertEquals("POST Example", api.getPaths()
-                .get("/example")
-                .getPost()
-                .getRequestBody()
-                .getContent()
-                .get("application/json")
-                .getSchema()
-                .getTitle());
-    }
-
     @Test
     public void testIssue749() {
         ParseOptions options = new ParseOptions();