src/share/classes/javax/swing/SpringLayout.java

@@ -493,11 +493,11 @@
                     return getBaselineFromHeight(i);
                  }
             };
         }
 
-        private boolean defined(List history, String s1, String s2) {
+        private boolean defined(List<?> history, String s1, String s2) {
             return history.contains(s1) && history.contains(s2);
         }
 
        /**
         * Sets the <code>x</code> property,