diff --git a/dev/core/src/com/google/gwt/core/ext/TreeLogger.java b/dev/core/src/com/google/gwt/core/ext/TreeLogger.java
index cae6b92..44055d9 100644
--- a/dev/core/src/com/google/gwt/core/ext/TreeLogger.java
+++ b/dev/core/src/com/google/gwt/core/ext/TreeLogger.java
@@ -15,7 +15,6 @@
  */
 package com.google.gwt.core.ext;
 
-
 /**
  * An interface used to log messages in deferred binding generators.
  */
diff --git a/user/super/com/google/gwt/emul/java/lang/Object.java b/user/super/com/google/gwt/emul/java/lang/Object.java
index fc9b233..5f0a917 100644
--- a/user/super/com/google/gwt/emul/java/lang/Object.java
+++ b/user/super/com/google/gwt/emul/java/lang/Object.java
@@ -47,7 +47,7 @@
   }
 
   public String toString() {
-    return getClass().getName() + "@" + hashCode();
+    return getClass().getName() + '@' + Integer.toHexString(hashCode());
   }
 
   /**