diff --git a/modules/swagger-core/src/main/java/io/swagger/v3/core/converter/ModelConverters.java b/modules/swagger-core/src/main/java/io/swagger/v3/core/converter/ModelConverters.java
index 5f6008648a..0bb9c21f02 100644
--- a/modules/swagger-core/src/main/java/io/swagger/v3/core/converter/ModelConverters.java
+++ b/modules/swagger-core/src/main/java/io/swagger/v3/core/converter/ModelConverters.java
@@ -42,6 +42,10 @@ public ModelConverters(boolean openapi31) {
         }
     }
 
+    public Set<String> getSkippedPackages() {
+        return skippedPackages;
+    }
+
     public static ModelConverters getInstance(boolean openapi31) {
         if (openapi31) {
             if (SINGLETON31 == null) {
@@ -58,7 +62,8 @@ 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();
diff --git a/modules/swagger-core/src/test/java/io/swagger/v3/core/converting/ModelConverterTest.java b/modules/swagger-core/src/test/java/io/swagger/v3/core/converting/ModelConverterTest.java
index aa6f886519..13a0fa1220 100644
--- a/modules/swagger-core/src/test/java/io/swagger/v3/core/converting/ModelConverterTest.java
+++ b/modules/swagger-core/src/test/java/io/swagger/v3/core/converting/ModelConverterTest.java
@@ -383,6 +383,23 @@ public void indirectPropertiesRecognized() {
         assertEquals(model.getProperties().size(), 1);
     }
 
+    @Test
+    public void checkDefaultSkippedPackages(){
+        ModelConverters modelConverters = ModelConverters.getInstance();
+
+        assertTrue(modelConverters.getSkippedPackages().contains("java.lang"));
+        assertTrue(modelConverters.getSkippedPackages().contains("groovy.lang"));
+    }
+
+    @Test(description = "It should not process skipped package")
+    public void ignoreSkippedPackage() throws ClassNotFoundException {
+        ModelConverters modelConverters = ModelConverters.getInstance();
+        final Type type = Class.forName("java.lang.String");
+        assertNull(modelConverters.readAllAsResolvedSchema(type));
+
+
+    }
+
     @JsonSerialize(as = AnnotatedImplementationClass.class)
     abstract class BaseClass {
         public abstract String field();
@@ -406,6 +423,7 @@ public void directPropertiesRecognized() {
         assertEquals(model.getProperties().size(), 1);
     }
 
+
     abstract class AnnotatedBaseClass {
         @JsonProperty
         public abstract String field();