Added a hack to confirm that the flaky RPCSuite failure is what we think it is.

Review by: bobv (TBR)

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@5209 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/user/src/com/google/gwt/user/server/rpc/impl/SerializabilityUtil.java b/user/src/com/google/gwt/user/server/rpc/impl/SerializabilityUtil.java
index 0eed41c..dacd3fc 100644
--- a/user/src/com/google/gwt/user/server/rpc/impl/SerializabilityUtil.java
+++ b/user/src/com/google/gwt/user/server/rpc/impl/SerializabilityUtil.java
@@ -180,6 +180,13 @@
     }
     if (containsCachedSerializerForClass(instanceType)) {
       // this class definitely has no custom serializer
+      /*
+       * HACK(scottb): temporary hack to confirm the flaky RPC test issue.
+       */
+      if (instanceType.getName().equals("java.lang.StackTraceElement")) {
+        System.out.println("Confirmed race condition with StackTraceElement");
+        System.err.println("Confirmed race condition with StackTraceElement");
+      }
       return null;
     }
     // compute whether this class has a custom serializer