diff --git a/gson/GSON 2.0 NOTES.txt b/gson/GSON 2.0 NOTES.txt
index 45dbc71c..9fa8c930 100644
--- a/gson/GSON 2.0 NOTES.txt	
+++ b/gson/GSON 2.0 NOTES.txt	
@@ -38,3 +38,11 @@ GSON 1.x supports type adapters for primitive types
 GSON 2.x doesn't
 com.google.gson.functional.CustomTypeAdaptersTest.testCustomSerializerForLong
 com.google.gson.functional.CustomTypeAdaptersTest.testCustomDeserializerForLong
+
+
+GSON 1.x throws IllegalStateException on circular references
+GSON 2.x lets the runtime throw a StackOverflowError
+com.google.gson.functional.CircularReferenceTest.testCircularSerialization
+com.google.gson.functional.CircularReferenceTest.testSelfReferenceSerialization
+com.google.gson.functional.CircularReferenceTest.testSelfReferenceArrayFieldSerialization
+com.google.gson.functional.CircularReferenceTest.testSelfReferenceCustomHandlerSerialization
\ No newline at end of file
diff --git a/gson/src/test/java/com/google/gson/functional/CircularReferenceTest.java b/gson/src/test/java/com/google/gson/functional/CircularReferenceTest.java
index f1367eb4..202e7863 100644
--- a/gson/src/test/java/com/google/gson/functional/CircularReferenceTest.java
+++ b/gson/src/test/java/com/google/gson/functional/CircularReferenceTest.java
@@ -52,8 +52,7 @@ public class CircularReferenceTest extends TestCase {
     try {
       gson.toJson(a);
       fail("Circular types should not get printed!");
-    } catch (IllegalStateException expected) {
-      assertTrue(expected.getMessage().contains("children"));
+    } catch (StackOverflowError expected) {
     }
   }
 
@@ -64,7 +63,8 @@ public class CircularReferenceTest extends TestCase {
     try {
       gson.toJson(objA);
       fail("Circular reference to self can not be serialized!");
-    } catch (IllegalStateException expected) { }
+    } catch (StackOverflowError expected) {
+    }
   }
 
   public void testSelfReferenceArrayFieldSerialization() throws Exception {
@@ -74,8 +74,7 @@ public class CircularReferenceTest extends TestCase {
     try {
       gson.toJson(objA);
       fail("Circular reference to self can not be serialized!");
-    } catch (IllegalStateException expected) {
-      assertTrue(expected.getMessage().contains("children"));
+    } catch (StackOverflowError expected) {
     }
   }
 
@@ -94,8 +93,7 @@ public class CircularReferenceTest extends TestCase {
     try {
       gson.toJson(obj);
       fail("Circular reference to self can not be serialized!");
-    } catch (IllegalStateException expected) {
-      assertTrue(expected.getMessage().contains("Offending"));
+    } catch (StackOverflowError expected) {
     }
   }