--- old/src/java.desktop/share/classes/java/awt/Container.java	2015-10-14 20:39:53.278830816 +0400
+++ new/src/java.desktop/share/classes/java/awt/Container.java	2015-10-14 20:39:53.090830825 +0400
@@ -532,7 +532,7 @@
         if (comp.parent == this) {
             if (index == component.size()) {
                 throw new IllegalArgumentException("illegal component position " +
-                                                   index + " should be less then " + component.size());
+                                                   index + " should be less than " + component.size());
             }
         }
         checkAddToSelf(comp);