Add 'groovy.lang' to ModelConverters skipped packages

Author: micryc

modules/swagger-core/src/main/java/io/swagger/v3/core/converter/ModelConverters.java

@@ -25,7 +25,7 @@ public class ModelConverters {
     private static ModelConverters SINGLETON31 = null;
     static Logger LOGGER = LoggerFactory.getLogger(ModelConverters.class);
     private final List<ModelConverter> converters;
-    private final Set<String> skippedPackages = new HashSet<>();
+    public final Set<String> skippedPackages = new HashSet<>();
     private final Set<String> skippedClasses = new HashSet<>();
 
     public ModelConverters() {
@@ -58,7 +58,8 @@ public static ModelConverters getInstance(boolean openapi31) {
     }
 
     private static void init(ModelConverters converter) {
-        converter.skippedPackages.add("java.lang");
+        converter.addPackageToSkip("java.lang");
+        converter.addPackageToSkip("groovy.lang");
 
         ServiceLoader<ModelConverter> loader = ServiceLoader.load(ModelConverter.class);
         Iterator<ModelConverter> itr = loader.iterator();

modules/swagger-core/src/test/java/io/swagger/v3/core/converting/ModelConverterTest.java

@@ -383,6 +383,14 @@ public void indirectPropertiesRecognized() {
         assertEquals(model.getProperties().size(), 1);
     }
 
+    @Test
+    public void checkDefaultSkippedPackages(){
+        ModelConverters modelConverters = ModelConverters.getInstance();
+
+        assertTrue(modelConverters.skippedPackages.contains("java.lang"));
+        assertTrue(modelConverters.skippedPackages.contains("groovy.lang"));
+    }
+
     @JsonSerialize(as = AnnotatedImplementationClass.class)
     abstract class BaseClass {
         public abstract String field();
@@ -406,6 +414,7 @@ public void directPropertiesRecognized() {
         assertEquals(model.getProperties().size(), 1);
     }
 
+
     abstract class AnnotatedBaseClass {
         @JsonProperty
         public abstract String field();