--- a/langtools/src/share/classes/com/sun/tools/javac/api/DiagnosticFormatter.java	Mon Jul 27 15:20:03 2009 -0700
+++ b/langtools/src/share/classes/com/sun/tools/javac/api/DiagnosticFormatter.java	Mon Jul 27 19:52:42 2009 -0700
@@ -32,6 +32,11 @@
 /**
  * Provides simple functionalities for javac diagnostic formatting.
  * @param <D> type of diagnostic handled by this formatter
+ *
+ * <p><b>This is NOT part of any API supported by Sun Microsystems.
+ * If you write code that depends on this, you do so at your own risk.
+ * This code and its internal interfaces are subject to change or
+ * deletion without notice.</b>
  */
 public interface DiagnosticFormatter<D extends Diagnostic<?>> {